This was an enjoyable book. The characters were well drawn. Although, this was the second in a series and at the start of the book I could tell I was reading at a disadvantage. I wanted there to be more of a resolution to the story or a bigger ending. Although, it looks like the third installment will be released in a year's time and perhaps that will give the reader more closure or at least a better look at the couple post-proposal.

This second book in the Secret Scientists of London series will please fans. Focusing on the Letty, the best friend from the first book, allows readers to continue to follow the adventures of Athena's Retreat and learn more about why it means so much to each of its quirky members. While the romance is hot, the backstories for the main characters could have been improved. The author's skill is evident, which will continue to draw readers, especially when she honors historical figures like Sophie Germain as she does in this book.

I loved Everett's first book, but this one was - dare I say it - even better! (How is that even possible?! )The thing I love about these books is that they are Feminist AF - STEMINIST, actually - but still retain every bit of sensual charm that readers of historical romance expect.

Did that make sense? Probably not but I'm overly-excited about this book.

The main character is strong, stubborn and brilliant, yet still relatable. And the love interest - insert dreamy sigh. Everett excels again at writing wonderfully flawed and magically charismatic characters, and I'd be happy never leaving the worlds she creates. (Well, actually, I'd be flogged and run out of town if I were stuck in the 1800's, but you feel me, right?)

The Secret Scientists of London series is an absolute favorite of mine and this second story was the perfect addition. I love a story set Victorian England that has female protagonists in roles of scientists, historians, surgeons, and any other profession that was dominated by men. And the men that challenge them and are attracted to them because of their brains...chef's kiss.

Looking for BRIDGERTON x THE LOVE HYPOTHESIS? Then Elizabeth Everett’s A PERFECT EQUATION is for you. This historical romance has everything – enemies to lovers, sexy carriage rides, mathematical equations, a secret society of women scientists, intrigue and drama, and women of STEM!
Something extra I loved about this book is how much of the plot reflects modern-day American politics, especially regarding women’s rights, treatment of the poor, and how loud fringe groups spouting hate and ignorance can influence public policy.
If you like your steamy romance served up with intelligent, strong women, you’ll love A PERFECT EQUATION.

No, you don’t understand. I’m obsessed. I bookmarked so many quotes!!! I can’t share them right now but just know the romance is SO SWOONY. Grey had to work hard to get back in Letty’s good graces and I personally love a man who knows how to grovel.

Grey had HUGE Cary Grant energy when he was being all cute and excited and curious about science things! Seriously, the only thing I could think about was Cary Grant boppin around a screen. There’s just something about Grey that is just so pure and charming. Now that I think about it, that something is simply how gone he is for Letty. The man didn’t stand a chance.

The way he read her romance novel? And wanted to talk to her about it? And the way he always smelled vanilla when Letty was around? And then how he was constantly craving cake throughout the book and being very confused about it because he hadn’t had a piece of cake in fifteen years? And how he planned to ask for her forgiveness and convinced Grantham to help? I didn’t stand a chance.

He was never hesitant to be honest with her about how much he wanted her. About what he thought about her and wanted to do to her and what she did to him. He was just so refreshing! And pure! His reaction to Grantham not judging him for his seizures was so sweet. I melt just thinking about how before Letty he had such a simple and healthy diet, and how quickly that changed into craving cake, sugar and vanilla, and her. He’s like the Ben & Jerry’s ice cream that has an ooey gooey chocolatey core but is surrounded by chilly ice.

Letty and Grey were just such a good match. A perfect equation if you will? Letty is great at math and Grey is great at words. He thoroughly understands the meaning of “pleasure.” I loved when he kept referencing how short she was and just how different they were. Height difference really does it for me. He rested his chin on her head like come ON. Also when he growls naughty words in the throes of passion? !!!!! They both didn’t want to lose control which was great because they both lost all control.

This book was also very very sexy. Book one banged and book two definitely bangs but not in a bed. I truly don’t think they banged in a bed once. Walls, desk, carriage, but no bed. And I very much did not mind at all. To hell with beds! Their chemistry was so hot and the way they learned each other was intoxicating. School is fun! I love my studies!

I know I just wrote so much about this couple but seriously, they were both so complex and gained so much throughout the story. There were so many moments that were so heartwarmingly simple. It’s quite hard to describe adequately, but Elizabeth has such a dynamic way of writing their interactions and the little things that make up loving someone and realizing that love in return.

⭐️⭐️⭐️⭐️⭐️/5 🌶🌶🌶.75

*I was sent this book by the author but we all know my opinions are honest and my own.*

3.5/5
I was here for the women empowerment during a time when women were told no constantly. I also think Grey just sounded like a dreamy man.

I had trouble following a lot of this books especially during the beginning. I am wondering if this is because I had not read the first book in the series and was lacking some background knowledge. There were a lot of side characters that I also found hard to keep track of.

I loved Letty and Grey and how they pushed each other but I wished there was more interaction between them. Maybe more of the small little conversations that led to them becoming friends and starting to trust each other.

Overall a cute read but not my favorite.

I significantly enjoyed Letty and Grey's romance more than Violet and Arthur's. I think it progresses in a way that makes sense, although situationally-speaking it felt like a re-tread of the previous book. The steamy scenes are well worth the wait and I appreciate that there are no massive communication issues to break Letty and Grey apart. Overall, it's a fine sequel.

Athena's Retreat, though, is still my least favorite part. There are almost too many side characters there; it feels a little strange that this is also where all the diversity is clustered. It would be highly interesting to explore some of those characters more, but it seems hinted that the next book will focus on the new member, Madame Gault, and the Earl Grantham.

A great addition to what is shaping up to be an amazing series! A man with a rigid set of morals clashes with a woman who knows what's best but lives with a regret. The writing by Elizabeth Everett continues to shine as she keeps writing about staunchly independent women navigating a world not yet meant for them. The story and the love story shine through and it's a great read!

Ambitions are threatened and romantic sparks sizzle in, A PERFECT EQUATION, Ms. Everett's third novel in The Secret Scientists Of London series. Athena's Retreat is a haven where lady scientists safely experiment and invent, far from judgmental opinions in London society. Miss Letitia Fenley, a pretty, petite lady, and Viscount Greycliff, a determined, dashing man, are summoned by their friends, Violet and Arthur. They intend to travel and require someone to oversee the retreat and the talented, eccentric women. Hopefully, nothing will go wrong.

Grey's political ambitions and Letty's topnotch mathematical abilities clash as a scary men's rights group threatens the ladies of Athena's retreat. There is a definite attraction between Letty and Grey. However, their tumultuous history and an unfortunate blemish in Letty's past stands between them. Is it possible to keep the retreat open? Will Letty and Grey recognize that they are meant to be?

A PERFECT EQUATION offers a big dollop of romance, a dash of suspense, a smidgen of humor, and a batch of quirky characters. I was hooked from the start as Letty and Grey fight it out with their opposing personalities. Their relationship is a hard won battle. There is plenty going on, between suffragist groups, a math competition, political aspirations, dastardly plans and more round out this immensely entertaining plot. Ms. Everett's stories ooze charm and charisma, that you will immediately fall in love with the characters. I adored Letty and Grey's relationship and their smart-alecky comments. It's plain to see how right they are together, but it takes them a while to find that out. I would love to have a tall, strapping man like Grey protect me! A PERFECT EQUATION is smart, sexy and scorching. Masterful!

Can I say Elizabeth Everett has romance down to a science? Just like with A Lady's Formula for Love, she gives us a strong, snappy heroine to root for, a swoony hero who must work to be worthy of her, and villain(s) with nuance. Letty and Grey were a delight to read about. The very real portrayal of the sexism was not so much a delight, but I appreciate how Everett--and her characters--address it head-on. If you like feminist historical romance, you need to read this series.

Perfect choice for the fans of A league of extraordinary women series! Elizabeth Everett guaranteed her place as my favorite powerful women empowerment historical fiction writers alongside Evie Dunmore !

This brilliant woman achieved the biggest challenge my high school never had a chance: she made me love maths! Huge congrats the powerful effects of her smart writing skills!

Of course I honestly love to promote any books written about independent, intelligent, intellectual women who plan to run the world ( let’s add some Queen B vibes to this review)
Enemies to lovers troupe with quick witted banters, high chemistry and high level sexual tension between Letty and Grey were the strengths of the story that pick your interest intact. You want to know about their past, why they get separated, what went so wrong about their relationship.

The political climate and social issues were also perfectly thrown into the equation with diversity representation by supporting characters.
Women in stem theme is always a big winner for me!

Overall: as one of the biggest fans of romance combined with historical fiction, this book gives everything I need and I’m looking forward to read the sequels!

Special thanks to NetGalley and Berkley Publishing for sharing this digital reviewer copy with me in exchange my honest opinions.

This book opens with a great premise of women scientists in an era where women even attending school was not the norm and the hilarity that ensues when men (in classic form) are not okay with the idea of equity. Overlay a clever protagonist with a somewhat shaded past, a stuffy hero with some secrets of his own and some “behind the scenes” game playing for political power, and a great story emerges. The only negative I can say about the story itself is that the “banter” between the main characters feels a bit trite, repetitive and immature...definitely feels out of character for both given their behavior in the rest of the book.

Overall however, I enjoyed the historical references to famous women in science (many of whom we are only recognizing now thanks to the exact misogyny outlined in this novel) and the subtle ode to Sophie Germain. Even the infighting among the women about how to proceed will ring true to anyone who has ever worked in STEM. This book has layers and much clever commentary on issues that persist to this day.

Letty Fenley is the most at home at Athena's Retreat, where women scientists such as herself are free to complete their experiments without any outside interference. When Letty's best friend and owner of Athena's Retreat Violet asks Letty to manage Athena's Retreat, Letty reluctantly agrees. What she doesn't count on is having to manage the retreat alongside Viscount Greycliff. Letty and Grey have had a rocky past and Letty wants nothing to do with him and the feeling is mutual. How will these two keep the retreat open when they can barely be civil with one another?

Oh, how I adored Letty and Grey in A Perfect Equation. These two had so much chemistry. I loved their banter and immediately needed to know what history they shared that made them dislike each other so much. And while I loved their enemies-to-lovers slow progression, I also loved how fierce and protective they were of one another (swoon).

I loved delving into both Grey and Letty's past. These two individuals had been through so much and both of them had such a hard time letting their guard down. There were so many times when I just wanted to scream at them, but at the same time I knew exactly where they were coming from.

A Perfect Equation had the perfect amount of humor, romance, angst and suspense! I was hooked from the beginning and loved the storytelling. I can't wait for the next book in The Secret Scientists of London Series. Overall I would give A Perfect Equation 4.5 stars!

This will be great for readers who liked Bringing Down the Duke and series. Social issues and contemporary politics build a rich setting, and many of the discussions feel depressingly current. This is a bit at the expense of the relationship, which is a surface enemies-to-lovers. Some elements of the story could have been given more depth with proper timing-- explaining the character's motivation after the action felt like all telling.

There are several side characters of interest-- a Black housekeeper, a trans assistant, a lesbian couple who are out to their fellow scientists, and a lady who has survived a miscarriage-- but the two main characters are cookie cutter British upper class.

While this book can be read alone, it makes frequent references to the first book in the series. Interested readers should start with A Lady's Formula for Love.

Books about women in STEM is an automatic win for me. This book was amazing and is sure to be a huge hit. Bravo!

Full review will be up on pop-culturalist.com closer to pub date. Even if you're not a fan of math, you're going to fall in love with Lord William Hughes and math wiz Miss Lettita Fentley.Perfect for enemies to lovers fans!

A Perfect Equation made me fall in love... with math?!?! I never thought it possible. But this book makes the impossible possible. Elizabeth Everett has penned another smart, warm-hearted, witty, empowering, smoking hot romance. I adored Letty and Grey, not only their chemistry, but their willingness to break down boundaries, their own internal boundaries and societal ones too. They make each other bigger and braver, and it's a joy to see their relationship develop across pages packed with scientific experiments (and explosions) and political intrigue that entertains while raising important social issues. The book focuses on the swoony enemies-to-lovers leads, but it also depicts a vibrant community of female scientists from different backgrounds. They're a wonderful mix of collaborators, friends, lovers, eccentrics, hedgehog and tarantula aficionados.... They're engaged in work that inspires them, which allows them to inspire each other, and make a positive impact beyond the walls of Athena's Retreat. They inspire me, and so does Elizabeth Everett's beautiful writing. I can't wait for the next book in this fabulous series!

This is the second volume in Elizabeth Everett’s The Secret Scientists of London series, about a group of ladies who form a scientific club, and manage to find true love during their adventures.  This one is a bit weaker than what came before it (A Lady's Formula for Love), but is still a welcome addition to any romance lover’s shelf.

Mathematician Miss Letitia Fenley is the kind of woman who snaps back at a group of men protesting outside of Athena’s Retreat, a club for lady scientists founded by her close friend Violet, Lady Greycliff, without any concern for what might happen to her own self in the process.  Letty frequently and proudly stands up against those who would abuse honest women.  She has good reason to.  Her dour, dry-eyed realism replaced girlish, romantic flights of fancy years ago, her heart hardened against romance ever since she gave her body to a nobleman named Nevin six years previously on the assumption that they’d be married, only for them to be caught in bed by his father.  Her reputation was ruined in the crucible of a scandal when Nevin’s father declared his son would never marry a shopkeeper’s daughter.  Letty was blamed for the seduction and turned into an outcast, making her a persona non grata, and forcing her to keep her distance from her friends to avoid damaging their reputations.  Thus Letty is a loner with little to lose.

Letty plans to compete for the Rosewood Prize in Mathematics disguised as a man, but her best friend Violet (heroine of book one) has recently suffered a miscarriage, and she and her husband, Arthur, are planning on a long vacation in warmer climes to help her recover.  They ask a reluctant Letty to take over stewardship of Athena’s Retreat in Violet’s absence.

Lord William Hughes, Viscount Greycliff (Grey) saves Letitia from brawling with a protester ( a situation she didn’t need SAVING from, thank you), which will be perfect practice for taking over his uncle’s soon-to-be-vacated spot in the Department, a secret government organization.  Grey has his own damage behind him – a seizure disorder which made his childhood an isolated hell, which he only surmounted due to what he believes to be his own iron will.  That means emotions are a remote thing for him and he Refuses to Love.  He and Letty have been at loggerheads about her behavior for ages now.  But Grey is intrigued by Letty and Letty is intrigued by Grey.

When Violet asks Grey to stand in Arthur’s place and guard the retreat in their absence, he jumps at the opportunity to at least prove to the Department he has what it takes to make it.

Naturally, love soon intervenes.  But when Nevin reappears – together with a dangerous group of anti-Athena protestors called the Guardians of Domesticity, who want to stop the group at any cost – a happy ending doesn’t seem to be assured at all.

First things first – I loved the tension in the romantic and sexual attraction between Letty and Grey, including their fun banter.  I loved Letty and Grey as people, too, and their friendship with Violet and Arthur.  Letty becomes friends with the other women living at Athena’s Retreat, and that is lovely to see.  And Grey has to learn to let go of his fears and be vulnerable, which is well-done.

I am utterly math-dumb, so Letty’s love of the subject was fun to delve into.  The other women continue their own experiments, which involve ants and a particularly adorable hedgehog.  I felt as if I were learning something as we went along.

I did subtract some points for a few pat plot twists - we even get a traditional sex-act-in-a-carriage scene.  Also, the supporting cast continue to be large and diverse, but I desperately want Everett to give them books in which they fully feature instead of acting as window dressing for another book about white Brits.  We have a Black housekeeper adept at science, two women in a Boston marriage, and a trans footman – it’s nice that they all exist in the story as people, but I want them to DO something, drive more of the plot, have different romances of their own.  Also, the villains are very thin, their machinations an obvious jab at men's rights politics and anti-vaccine, anti-science types.  They get their due and it is good, but nuance would’ve been appreciated.

Yet I did really like the spicy connection between our hero and heroine, which makes A Perfect Equation well worth recommending.

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Another great read from Elizabeth Everett!

I love women in histrom who do unconventional things. In a time where it was frowned up and often, vehemently opposed, for women to be educated, we have this wonderful series of women in STEM. Ugh, I love it so much.

Elizabeth has a beautiful prose to her writing, making you very present in the Victorian time. The characters and romance is spot on and I loved it all.

Can’t wait for more from this author!

This book was gifted to me by the publisher, I am mutual friends with the author on social media, review is my own.