This story follows multiple people in Fairbanks, Alaska who start to notice some otherworldly things happening around them--a contractor hired by a mysterious government official to rebuild an old lab in the woods, a high school kid who realizes his dad has been telling the truth, a small town sheriff nearing retirement, etc. I enjoyed the different perspectives. It's unique and definitely grabbed my interest, though I felt there could have been a bit more information with the ending. It felt like it was building to something huge that never really panned out. Worth a read though!

This was such a fun read! I loved the conspirational tones, and love all things pre- and post-apocalyptic. This book had themes of both, That kept me glued and turning the pages as quickly as I could!

A few years ago a comet left behind a metal that led to a lot of changes on Earth. This third book in the series continues that story and is full of inexplicable happenings and conspiracy theories. It jumps around among the povs of several characters in 2 time periods. That made the book a little confusing at times. Most of the characters are looking for a mysterious “something”. My favorites were the woman who worked for the Collectors, and was strictly in the hunt for the resulting monetary reward. I also liked the 3 teenaged boys who were attempting to find the conspiracy-nut father of one of the boys.

I read the first 2 books in this science fiction series, but I confess that I have absolutely no memory of the second book. I do remember that the first book left me with questions. Unfortunately, this third book doesn’t really answer them either. The ending is so open-ended that I think that the series will probably continue. The book was entertaining enough for me to read another one. 3.5 stars

I received a free copy of this book from the publisher.

Omnimetal has fallen from a meteor and changed society. All 3 books of Benjamin Percy's Comet Cycle tackle a different aspect of life after impact, and can be read as standalones, although this one seems to end more like a cliffhanger - at least I want to know more about what happens and why, This chapter of the Cycle centers around two aspects: strange weather is happening, upsetting gravity and an atomic bomb era scientist has left behind a strange logbook in a ruined government lab in Alaska.

Percy's characters are all flawed, in very realistic ways. They are stuck in unpredictable circumstances which dictate some of their choices, leading the reader to think about what they would do in a similar situation.

I need to keep reading about the Comet Cycle. I recommend this series to many people who don't know how sci-fi-ish speculative fiction can be. It's a great gateway drug. And if you read this book, you'll get my knowing wink.

Alaska seems a little wonky in THE SKY VAULT, by Benjamin Percy. There is a mysterious construction request, a man that goes crazy on a plane, and wildlife found on top of buildings. As unrelated as these events seem to be at first, they all relate to a larger unexplained phenomena that could forever change not only the world, but how we perceive the universe.
One of the things that hooked me on the book once I started reading was how all of the main characters are common people. A local radio DJ, an almost retired cop, a woman who recently took over a business from her father. and so on. No one is particularly special or unique, but all of them are likable and feel very real. The action of the book is a slow build and as the anticipation rises on finding out the truth, the reader starts to yearn for the answers perhaps even more than the characters. The scientific theories, while somewhat supernatural, seem quite plausible, at least to a non-scientist. The finale of the book is quite rewarding and at the same time leaves the reader with a few unanswered questions so thinking about the book won't stop until long after the reading is done.
This book is the third part of a series, but definitively stand alone and does need it's predecessors. THE SKY VAULT is thrilling from beginning to end and a pleasure to read.

Thanks to HarperCollins and Netgalley for the ARC.

I am going to be looking at clouds very differently for a while thank you very much Benjamin Percy, because this story is intense and full of creepy imagery. And while each book of the Comet Cycle is technically a standalone, I think having read the prior two books does help out here. As with the other two novels this takes place in a new location, Fairbanks, Alaska. Percy does a fantastic job of not only weaving multiple POV's into an increasingly tense story but also adds in history from WWII in the form of logbook entries. It may seem like a lot at first, but boy does it all pay off in the end as more and more is revealed and the POV's collide.
I really enjoyed the thread of the 3 teens as well as Joanna's and Rolf's entries. The slow build and descriptions of what is happening in Fairbanks is terrifying and definitely has horror/Stephen King vibes to it. It's about impossible to put the story down in the last 25%. There are some answers to important questions here, but it is also open ended enough to give us hope there may be another story coming in the future of this terrific series!!

In the third book of the Comet Cycle Series, something strange is going on in the isolated region of Fairbanks, Alaska, where the skies shift and stretch as an interstellar dust cloud seeds the atmosphere. When a plane shudders its way through one of these strange swirling, bruise-shaped clouds, lit with sudden cracks of lightning, the sky opens and the aircraft vanishes…but only for a minute. When the flight lands, those left still on board and in the community will be changed forever. Chuck Bridges, a local DJ and conspiracy theorist, was on board and later reported dead to his family, but not before proclaiming that something inside the clouds was speaking to him. Now his son, Theo, must chase down answers to the mystery his father unlocked. Sophie Chen, an agent with a shadowy employer is desperate to secure the black box from the airplane. Rolf Wagner, a widowed sheriff, is investigating a series of increasingly strange and unsettling reports. And then there is Joanna Straub, a contractor reconstructing a top-secret government lab active during WWII and shuttered deep within the nearby White Mountains. The answer to the comet’s origin is about to be unveiled, and its impact on Earth is more treacherous than humanity could imagine.

I have read all three of the books in the series, and they have all been excellent. This one could actually be read as a stand-alone, since it takes place in another location altogether, and doesn't heavily rely on information from the previous two novels. There was non-stop action from start to finish, characters you loved (like Theo and his two best friends, just to name a few) and characters you hated. The airplane scene was both crazy and a little gruesome, so I definitely loved that. The way it ended left it open for potentially another book, which would be great. Overall, if you are a fan of fantasy or science fiction, then you are definitely going to want to add this to your TBR pile.

**Thank you to NetGalley, William Morrow Books, and the author for the eARC of this amazing title!**

I am delighted that The Sky Vault is a perfect ending to The Comet Cycle. I loved The Ninth Metal and The Unfamiliar Garden and this book is no exception! (The Unfamiliar Garden remains my favorite in the trilogy.)

The Comet Cycle begins with a huge meteor passing close to Earth, leaving behind a debris field which later impacts across Earth. (Check out my reviews of the previous two books in the series if you want a little more background!)

The Sky Vault takes place in the same universe as the other two books, but much like book #2, I would have enjoyed this as a stand-alone as well. Each book in the series has focused on different areas that the comet debris has affected. While book 1 was more political/economic and book 2 was more natural/organic, The Sky Vault was more astral/supernatural

I can’t say enough good things about this series in general, especially with a killer ending like this one! Check this series out if you like sci-fi, space, nature, and the idea that there’s something more out there!

Each book in this series is unique but they all circle around the same theme, a comet named Cain. The first book details the immediate effects of Cain bringing a new metal to Earth and the second book focuses on the effect of the comet on our world's ecosystem.



This third installment dives into the origins of the comet but I would really label this one as a "multiverse The Mist." It's sci-fi, it's horror, it's filled with a whole cast of amazing characters, and I certainly hope this series continues because I am hooked!

This was another great entry in the Comet Cycle series, I enjoyed the idea of a secret since WW2. The characters felt like the other two books and worked in this universe. I enjoyed getting back into this universe and had a strong concept overall. I can’t wait to read more from Benjamin Percy.

The third in the Comet Cycle collection, Percy has created a compelling story with connected characters all flowing from a fascinating premise. I love that you don't have to read them in order but reading each one builds on the others. I always handsell Ben Percy's books along with Blake Crouch and Andy Weir...perfect for someone who is into sci-fi and wants good writing and also for those who don't consider sci-fi their genre but will soon be convinced!

It's a damn shame that Ben Percy's Comet Cycle wasn't picked up to be something ongoing, an anthology series or even a new cosmology like the Lovecraft mythos. There's a lot of room left to play in this world -- even more, if this book's reveals are any indication. And while this book isn't quite as tight as the first two, it's still a rip-roaring ride. Here's hoping someone comes along and gives Ben a little more time in this universe.

This is a short, fast paced whirlwind of a book, presented through many relatable viewpoints over the course of just a few days. In spite of being solidly a horror story, I really enjoyed it for the excellent storytelling. Benjamin Percy has a knack for telling you an enormous amount about a person with just a few words about their furniture, haircut, or the state of their fingernails, and a few lines of dialogue. All of the viewpoint characters are interesting and relatable, and all so different from each other. In the previous books in this series, it seems a passing comet is the source of some very strange things. In this book, you learn more about how this comet came about, and why the things coming from it are so unusual. It's set mainly in Alaska, in and around Fairbanks, and paints a picture of what it's like there in early fall before winter sets in. There's a secret government lab in the mountains that has recently been powered back on. What were they doing there? In the end, things conclude satisfactorily for Earth and humanity, but you're left with some things to think about. What exactly happened to Thaddeus Gunn, for instance. What is Ram VII going to do now that he's swallowed the alpha omnimetal sample? Creepy.

This standalone novel is the third in the author's Comet Cycle series. I hadn't read either of the first two, but I fell right into this one and enjoyed it immensely. I'm not a science guy, so I often have to just accept that ideas are plausible, and I had no problem accepting the premise in the book. Multiple POVs, multiple timelines, very interesting, very different characters made for an interesting read. Several instances in the last 15% of the book seemed similar to Stephen King's The Mist, which wasn't a bad thing at all.

Highly recommended, but have an open mind.

I received a complimentary copy of the novel from the publisher and NetGalley in exchange for an honest review.

This is the third entry in the Comet Trilogy by Benjamin Percy. The writing is consistent with the first two entries, but the plot sprawls a bit more across time, and that only opens more questions than it answers. If this is really the final book in the series, it is a frustrating finish.

Amazing finish to the Comet cycle. Read more like a Stephen King novel than the Yellowstone-esque drama of The Ninth Metal. I particularly enjoyed the eldritch horrors and usage of expository logs to tell a creepy yet satisfying tale. Percy also left a relatively open-end so I do hope there is one last book (doubtful as this felt like the end). I'm thankful to NetGalley and the publisher for the chance to read this book in exchange for an honest review.

For fans of Dean Koontz/Blake Crouch/Stephen King.

Ebook/Science Fiction: This is book three of the stand-alone trilogy and what an ending. The first book tells the events as the Earth goes through a comets tail. The second tells of the aftermath and how the comet's remnants affects the economy and society. This book goes further by telling the origins of the comet.
I still have questions.
I love the three teens. They remind me of the kids in Super 8.
I want to thank Netgalley for a ARC of the book.