I really enjoyed this one. I did not see it playing out like it did. It was a nice surprise. I highly recommend this read. If you liked Indiana Jones as a child, then you especially will enjoy this book. Many thanks to the author, publisher and NetGalley for a complimentary copy of the book. The opinions expressed in this review are entirely my own.

A creative and clever plot concept combines archeology with technological devices Archimedes invented centuries ago. The Cosmos Keys is an intriguing adventure with interesting characters and a suspense-driven narrative. Glenn Cooper offers readers a fascinating and entertaining read.

David is an archeologist on a dig in Turkey when he uncovers a bronze device with Greek writing and a map of the world that wasn’t known when it was created. He asks Eleni for help. She is an expert on ancient technology and their inquiry leads them to secrets that have been hidden for centuries. As they continue to unravel the clues, they must travel across Europe and face others who are also looking for answers. Will David and Eleni solve this ancient puzzle? Is the survival of the human race at stake?

The Cosmos Keys is a stand-alone thriller that will pique the interest of fans of The DaVinci Code and Indiana Jones. No prior knowledge is necessary to enjoy this story, but it will be better for those who already love everything Greek mythology. Cooper’s characters and conspiracies are easy to understand and relate to, which makes this story feel as if you are part of the experience. The Cosmos Keys is a wonderful thriller with a touch of nerdy romance.

The Library of the Dead was the first book I read from this Author, a panicked birthday present from my son, it turned out to be a lucky buy and a good read, and several more followed over the years.
The Cosmos Key vividly portrays the heat of Athens and those cold underground caves in Turkey and Nottingham.
I did find the characters were introduced too quickly, the locations changed really rapidly and it was hard to keep pace sometimes.
I felt the author really prefers to be writing about the Ancient past, his description of Archimedes and his many experiments, the Myths and Legends of Ancient Greece, were so addictive and really sparked my imagination, the excitement of discovering a device that shouldn’t have been possible to create all those centuries ago, I was fascinated by the Antikythera Mechanism,and got distracted by doing some extra reading alongside this novel, there are so many questions and theories to play with!! I much preferred reading about the Ancient Greek world, their religious beliefs and culture, the Oracle of Delphi, these were so well researched and really brought the book to life.
The modern era exploits seemed rushed and quite contrived, the romance, at first full of promise fizzled out, all the events seemed strained.
The Greek and Roman imaginings were by far the stronger in tone and better written.
The modern era was almost saying, “” I have a marvellous idea for a story, how can modern days and ways accommodate this””?
I gave a four star rating for these reasons.
My thanks to Netgalley and the publishers, Book Whisperer, for my advance copy, freely given in exchange for my honest review. I will leave reviews to Goodreads and Amazon UK upon publication.

Glenn Cooper has been around for awhile but has not yet received the recognition that he is due state-side. His books are suspenseful and well-researched earning him a place beside the likes of Steve Berry, Dan Brown, and James Rollins. The Cosmos Keys is no exception. The story is gripping and keeps the reader wanting more. The characters come to life in the page with each having a life-changing arc. The main character, David, seems a little to hard to believe at times. The exploits of David and Eleni could most likely not happen in modern times but are no less interesting for it.

When archaeologist David Birch finds an artefact of Greek origin and unusual manufacture in an excavation in Turkey, he decides to turn to an expert, Eleni Lillakis, to find out more.
An adventure story where we have a narrative in two timelines, the present and the origin of the artifact where the author manages to perfectly combine action and history.
I was hooked from the first chapter. Definitely a very entertaining read.

The Cosmos Keys mixes real facts (there is an Antikythera Mechanism and the underground city of Derinkuyuy really exists) with fiction like the Destiny Machine and it makes a wonderful reading. The story has a lot of mystery and action, it has romance and brings to discussion how mankind might react to learning how things will change and sometimes die. I love history and love to learn about the unkown and the fantastic, if you are a fan of these items this is a book that you must read!
I thank the author, his publisher, and NetGalley for this ARC.

David, a Harvard archaeologist unearths an ancient machine in a dig in Turkey. He goes to Greece to ask for help from Elena Lillakis, a renowned expert on ancient technology. What follows is an adventure to find the other keys to the ancient machine that will tell the future. As they traverse caves, dig up remains, and visit shrines to Zeus, they realize others are also looking for these historic machines and they don't know who to trust.

I have read other books by Glenn and have loved them. Adventures stories with historical connections, well researched ones.

This is an intriguing mix of history, archaeology, and high-stakes adventure, somewhat of a cross between an Indiana Jones adventure and the Da Vinci Code. The novel vividly brings to life the scorching heat of Athens and the chilling underground caves of Turkey and Nottingham, immersing the reader in both ancient and modern landscapes.

We have Harvard archaeologist David Birch, who stumbles upon a mysterious bronze artifact in Turkey’s underground city of Derinkuyu. Suspecting a link to a legendary Greek relic, he takes an ethically questionable move and seeks out an expert Eleni in Greece who thinks the artifact is part of a lost mechanism that predicts disasters. Their search for the missing pieces sparks a thrilling chase across Europe. The novel excels in its rich historical details, particularly its exploration of Greek mythology, though the modern-day plot and romance fall flat. Action-packed and immersive, it feels like a cinematic adventure. The sections exploring Greek mythology, legends, and religious beliefs are meticulously detailed and vividly written, undoubtedly the novel’s strongest and most engaging aspects.

But overall, Glenn's Cosmos Key is an entertaining thriller that blends cutting-edge science with ancient mysteries. The concept of a device capable of predicting catastrophes is a fascinating one, and despite its flaws, the book delivers an engaging and imaginative ride.

Mythology, archeology, good old Archimedes and then add more mystery and criminal minds of today, and bang, you have a great story! My favourite part of the story was surprisingly the modern day dig and chase, but all different parts work well together. I liked the keys part in the story, because it gave a bit of a twist, because I have read several books in this genre that reminds me a lot of this one, and to stand out, you need something different and memorable. I recommend this book to readers who enjoy the Indiana Jones kind of a vibe in books.

Thanks to NetGalley and Book Whisperer for an ARC in exchange for an honest review.

3.5 stars

David Birch finds an interesting artifact on a dig in Turkey's ancient underground leads David on a wild dash across Europe to solve a 2000 year old mystery. I am always impressed when authors can take an ancient artifact and turn it into a solvable modern adventure.

I enjoy archeological adventures such as The Davinci Code, and this book is similar as being a country-hopping, historical treasure hunt. Since I have limited historical knowledge, I found this story very involved and exciting without having to worry about any accuracy. I got caught up in David's hunger for knowledge, but really did question his work ethic. I was not surprised about the result of his globe-trotting, but still was excited about his adventure. I really enjoyed the historical chapters and all of the background information. The genius of Archimedes is stressed numerous times in the story, and I appreciate when this is appreciated over celebrity. I found this book to be a combination of The Davinci Code and 2012, with a lot of excitement and danger (mostly in the past, but some in current day). Thank you to BookWhisperer and Netgalley for allowing me to read an ARC copy of this book - This story drew me in and I could not put it down until the end!