n the not too distant future, a group of scientists invent a machine that transports convicts to the past in alternate universes. There is no way for them to return. This drastically reduces the crime rate, as fear of the unknown is much more of a deterrent to committing serious crime than life in prison or the death penalty.

Each of the scientists involved in the project has a deep, dark secret that they want to protect at all costs. When one of the scientists is murdered, they all know it has to be one of the team, or someone close to them. Surveillance cameras prove that Dr. Sam Anderson and his daughter, Adeline, were the last ones to see the murdered woman alive. After receiving a threatening note, Dr. Anderson takes the blame. His punishment is swift as he is sent into the past by his own invention.

The novel is then told from multiple timelines: the near future, the distant Triassic/Jurassic past and more. As Dr. Anderson fights off carnivorous dinosaurs and other prehistoric hazards, his daughter works to find a way to get her father back and discover the real murderer.

I confess I’m an A.G. Riddle Fan. This is the seventh book I’ve read by him. I’m the first to admit that his books aren’t great literature (and could benefit from the deft hand of a detail-oriented editor), but they are absolutely delightful “sit back and enjoy the ride” fictional romps through the author’s imagination. Lost in Time crosses several genres: time travel, light science fiction and thriller.

While I was reading this book, I was involved in a couple very time-sensitive, intense projects. Lost in Time was the perfect mental getaway for me. I’m crossing my fingers, hoping for sequels!

My Rating: 4.25 Stars, Grade A-

NOTE: Thank you NetGalley and Head of Zeus publishing for the opportunity to read and review an Advanced Reader Copy of this book. Expected publication date is September 1, 2022. Look for it at your favorite online or local bookseller.

Thanks to NetGalley and Head of Zeus for an advanced readers copy in exchange for an honest review.

4 stars

Dr. Sam Anderson and five others have invented a machine that is used to send prisoners back in time 200 million years. Sam and his 19 year old daughter are accused of murdering one of the other co-founders. Sam confesses and is sent back to live with the dinosaurs and Adeline works to solve the mystery and bring her father back.

I liked the book as it was going back and forth between modern day and the past. Then after about halfway it takes an awesome twist which took the book up a notch and I stayed up very late in order to finish. A fun read.

This is so poorly written I’m doing something I usually don’t do and writing a review without finishing the book.

The writing is so trite: one cliche after another. For example:

““He felt as though the sea was testing him, and there was no pass or fail. Only live or die. The crescent moon glowing...”

Sorry, but this is unreadable.

Thanks to NetGalley and Head of Zeus, LTD. for providing an ARC (Advance Review Copy) in exchange for an honest review.

The book will be published on September 1, 2022.

#NetGalley #LostInTime

Time travel is tough to get all the details right, but Riddle did it in this wonderful, twisty novel. 4.5 stars!

When his teenage daughter is falsely accused of murder, a scientist must travel 200 million years into the past to save her. But there are secrets waiting there. And more than her life is at stake.

From the worldwide bestselling author of Departure and Winter World comes a standalone novel with a twist you’ll never see coming: Control the Past. Save the Future.

I would have given it a solid 5 stars except for two niggly little bits. 1) Sam's son Ryan always just seems like an afterthought; I would have liked to see just a few times where the little kid wasn't playing second fiddle to his sister for Sam's affection. 2) One niggling plot point regarding the bits and pieces of the recall ring (which if I say more would be a spoiler, so I won't!)

I highly recommend this time travel novel.

A great read. Fun, fast some nice plot twists. If you’ve read any other Riddle books you’re going to really enjoy this one. If this is your first I can bet you’ll read his others.

Lost in Time by A.G. Riddle There is so much going on in this book, time travel, an unsolved murder, family drama, first loves, new loves, addictions, dinosaurs, quantum something or another (way over my head), and enough twists and turns to make one's head spin. A bit of a slow start then bang, the story takes off. Just an all out entertaining, fun and engrossing read.

Thank you to AG Riddle, publisher, Head of Zeus and NetGalley for the opportunity to preview the book.

This book can only be described as addictive from beginning to end. A.G. Riddle stayed true to his style. There is a lot of science and mystery. It will put your head in a spin and make you confused but in a fantastic way. It's a story about time travel at the next level. The characters are fully developed with personalities that can only be seen on the big screen. I, at times, was so immersed in Daniela's nature that I thought for a moment I was Daniela and what I would do next. The ending, for me, was a little difficult to swallow. The idea and actions were based on more emotions. How do they pick the people? What if those people that were chosen weren't meant to live? : (readers, you'll get what I mean after reading the book). It's a must-read book for this year.

Thank you to Head of Zeus -- an AdAstra Book, and NetGalley for letting me read this ARC in exchange for an honest review.

well written with a gripping storyline, short chapters which made for a quick read and well developed characters. I r=enjoyed it

His best book yet. Time travel, dinosaur's murder mystery this book has it all could not put it down.
I received this book from Head of Zeus and Netgalley for a review.

I was really looking forward to reading this book. However I just didn't connect to it, the characters didn't grab me, and I just didn't enjoy the read .So sorry and hope other readers like it more.

A sci-fi time travel thriller with lots of twists? Right up my alley.

Well, this wasn't right up my alley. I thought that Sam gave in and confessed to the murder much too easily. And I admit to having scanned some of Sam's time travel chapters, because I just wasn't interested in more waves of sea water or scenic greenery. On the other hand, Adeline's POV was very interesting once she found out Daniele's secret.

This is my first AG Riddle read. Very satisfying indeed. More than a few surprises and some nice twists. The story of Time Travel used as the solution to crime. The worst of the worst get sent back in time to alternate timeline Triassic banishment. Works great, world populations are scared you-know-what-less, so most everyone toes the line. One day one of the scientists, one among a team that discovered the breakthrough, is murdered. The evidence points to the daughter of one of the scientists and her father. The ensuing mystery of who got away with murder and framed her dad becomes the daughters life focus. Relentless is an understatement. We also spend time back in time with her banished father and his fight to survive.
This story gets increasingly better the further it goes. The characters grow and the story evolves to a pretty darn interesting tale that, as mentioned, had some nice twists. This is an ARC I recommend easily. Fun read.

This was a very interesting story and one that I have not seen before. I loved the originality, story and characters. I think the author did a good job at making the story part science fiction and part mystery. I was able to follow along pretty well. Part three was my absolute favorite!

I received a copy of this book for a free and unbiased opinion.
The book has an interesting use for time- travel technology- it is used to send criminals to the past to be eaten by dinosaurs although the official line seems to be for people to live in exile.
Sam finds himself accused of the murder of his lover as is his 19- year-old daughter Adeline but finds himself confessing to the crime to protect her. As a result, he is sent to the dinosaur age which is ironic as he was one of the scientists who developed the tech and made millions from this.
His daughter Adeline is determined to find the evidence that proves his innocence and bring him back home. But she needs the help of his fellow scientists and financial backer but why do all of them seem to be hiding secrets.
Adeline is a realistic and believable 19-year-old and the book is mainly from her point of view. The world-building is futuristic and believable. There is enough explanation of the science to understand time travel but not too much to be boring.
I can;treally say more about the story as that would heading into spoiler terrority.
I’m not sure if there is a sequel to the book as I thought there were plot strands that weren’t resolved which left me a little frustrated. I didn’t quite understand the plot but that could be just me being dense and this did not stop me from enjoying this mind-boggling story.

Oh my goodness I just loved this book,I have to admit to not knowing the author before but will definitely be reading more from them .I was able to read the book early on NetGalley Uk the book is published on the Uk in September by Head of Zeus
I love time travel novels and this is a unique and well written one which had me enthralled from the past .You have you love time travel into the time of dinosaurs .This is a small section of the story but incredibly visual and exciting with great cliff hangers at the end of each chapter
The story set in modern times is also fun to read and incredibly believable
The book is a complex tangle of past present and future and at all times it was easy to follow the chain of events and understand what was happening .There I’d a satisfying who dunnit in the story which unravels slowly with a great plot twist at the end which I didn’t predict and enjoyed thoroughly
The chapters are just the right length to keep you engrossed and the writing style is easy to read
I think this book would make a really fantastic movie and I’m sure the rights will be grabbed up quickly
This book was a light fun read and exactly what I was looking for the plot is intelligent and will appeal to those who like The time traveller’s wife .Great Sci Fi with an emotional heart I loved it

Tremendously entertaining with a mix of action and mystery and an agile and fluid pace that keeps you hooked from the beginning thanks to short chapters and interesting characters with a common purpose and also with their flaws that add a greater dimension.
Without a doubt it is a highly recommended book.

A group of scientists has developed Absolom, a machine that sends the world’s worst convicted criminals back in time, hundreds of years in the past, into the age of the dinosaurs. The threat of this fate had made crime virtually unknown on Earth.

The six scientist who developed the breakthrough - Elliott Lucas, Hiro Sato, Daniele Danneros, Sam Anderson, Nora Thomas, and Constance Niven, now believe they are ready to complete “Absolom Two,” but there is one big problem. One of the six has been killed, and one has been framed for the murder. They all can’t help but think it is related to the development of this new iteration of Absolom.

The murder mystery is couched in an exploration of the possibilities of quantum entanglement, and what that could mean for the universe. I wasn’t so sure about the feasibility of the physics part, and there seemed to be a huge paradoxical conflict between two of the characters, but the mystery was good, the dinosaur segments were fun, and the story held my interest.

Fantastic and fast paced, emotional rollercoaster.

This is my first A G Riddle read and I will definitely be reading more.

The story centres around a group of people who, with their own reasons, build a time machine. The plot is on full of murder mystery, a whodunnit situation that leaves you disagreeing with yourself on what the hell has happened.

The story flows very well, I only started this last night and have now finished it in two sittings. If there was ever a unputdownable book, this is it.

The characters, as I’ve mentioned, all have their reasons to want to change their lives. Also, each one has a motive to want to murder the victim. Every time I thought I knew who done it, I was switched and left unsure. Each character felt real and where making decisions you’d expect of them.

There is a lot of time travel in this book and it sometimes went over my head, which isn’t hard! There’s a few scenes I would love to mention but it’s much better if you experience this yourself.

4/5 stars. Great story and one I didn’t want to end. I look forward to delving into the Riddle world.

You can find me @gavinreads for book chats!

<i>Lost in Time</i> by <b>A.G. Riddle<b> is a combination of thriller and science fiction, with even a slight touch of feelgood. Several ingredients of the proven Riddle-recipe are present again, like many short chapters of which a lot end with a cliffhanger that keeps you turning the pages for what is to come. Or like a good dose of action, mixed with technological challenges. The fast paced style of storytelling is very appealing. From the first chapter onwards, Riddle keeps the tension going. The main characters – Sam and Adeline – are treated unjust from the very beginning, which helps in sympathising with them, and of course then you want to know what happens to them further into the story.

The book is divided in five parts, combining eighty chapter and an epilogue. The first part of the story is set five years into the future, with a murder case that appears to be a locked-room mystery, allegedly invented by <b>Edgar Allan Poe</b>. Most of the used technology is logically not very far ahead of what we already have, although some inventions seem unrealistic, not counting Absolom. But one never knows what the next five years will bring. In any case, it will be interesting to check again in five years how believable the book still is. At this moment, it’s very appealing in any case.

Starting from part three, part of the story shifts towards historical fiction, when Sam enters the Late Triassic. The rapid going back and forth between two timelines is well managed, with said cliffhangers at exactly the right moment. The way Sam has to solve practical problems, reminds a lot of how <b>Andy Weir</b> makes his protagonists do a similar thing in books like <i>The Martian</i> or <i>Project Hail Mary</i>. Fun fact: in Lost in Time, Hail Mary is mentioned once too, although not related to Andy Weir.

A.G. Riddle has some more aces in his sleeve. People who’ve read the <i>Impossible Times</i> trilogy by <b>Mark Lawrence</b>, will also love this newest Riddle-novel, because as of a certain moments, brain teasing time paradoxes, conceptually similar to the ones in <i>Impossible Times</i>, enter the story. The solution is surprising. I had a fairly good idea about how the plot would evolve after I head read a third of the book. My guess was not bad at all, although it’s clear to me that many readers will guess part of the outcome because Riddle ingeniously steers you in that direction. But then there is Riddles final trump card, shifting the solution in a way not many readers will see coming.

I was less impressed by the fifth and final part. Too long winded and cheesy for my taste. Could have been told in half the amount of words. Apart from that, this is a very recommendable sci-fi thriller.

I enjoyed Lost in Time quite a lot. It was engaging, and while it absolutely melted my head with the causality and science stuff, it was still a thoroughly gripping story. I got through it relatively quickly, my only issue was how it ended if I’m honest. It was fine, but I had expected more for some reason! Overall though it was a really good read!