The Cave
The True Story of Two Mysterious Deaths in an Underwater Labyrinth
by Dan Frolec
This title was previously available on NetGalley and is now archived.
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Pub Date 31 Jan 2026 | Archive Date 8 Feb 2026
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Description
A gripping true story of adventure turned nightmare – and the fight for truth
Do you know why we ask questions about Michael’s death?
Do you know that he was stabbed with a knife?
Did you know it was murder?
It was 2002. My friends and I embarked on what should have been a fantastic sailing and scuba diving adventure along the Croatian coast. We discovered an underwater cave and went exploring. Through a cruel twist of fate, a mix of coincidence, a mistake, and bad luck, one of us vanished into the darkness. We searched for him, without any success. The following day, the authorities deployed two navy divers who seemed not to have been in any cave before to find our friend. One diver never came back.
Two days later, the nightmare intensified. One of my friends and I were accused of murder and thrown into custody. Croatian police needed someone to blame. They claimed they had found our deceased friend with his diving knife buried in his chest. Could they manufacture the evidence to sentence us? Our fight for freedom started.
Advance Praise
“I remember being so enamoured by this fantastic tale when Dan verbally told me a few years ago. Once I recovered from the amazing twists and turns of the story, I remember thinking this has to be a book, and now here it is, for everyone to be taken on this breathless journey.” – Kipper Eldridge, Grammy and Emmy winning music producer
“What begins as an adventure among friends quickly turns into a dark descent into the abyss. A haunting story of desperation, will, survival and determination.” – Christopher Thompson
“One of the most gripping survival scuba diving thrillers in years.” – Will Travis
Available Editions
| EDITION | Paperback |
| ISBN | 9781835841259 |
| PRICE | £10.49 (GBP) |
| PAGES | 164 |
Available on NetGalley
Average rating from 13 members
Featured Reviews
This was a good story about the author’s experience being falsely accused of murdering a fellow diver on a trip to Croatia. The diver had become lost and ran out of air, killing himself with his knife right at the end. The author and another passenger were both jailed for weeks while the investigation happened. This book relates their time on the trip and being locked up.
Imagine being in a foreign country on a vacation with your friends and being arrested and accused of murder of one of your friends and a police officer. That is what this story is about, however, it's not unique in the fact that the so called murders occurred in an underwater cave during a diving expedition. You will experience every step of the way with the author - experiencing his fears, frustrations, boredom, humor and surprisingly even some of the bonds that he made. Amazing what the human spirit can endure. Thanks to NetGalley, the author and publisher for an advanced copy in exchange for my honest opinion.
Reviewer 834532
A super quick read. I think it only took a cpl hrs. I appreciate its based on real events and with that in mind, its well resold and definitely kept me engaged. The thriller reader in me wanted more tension and drama ib the underwater caves and more in respect to the mystery being solved. It definitely a really interesting story and shocking to think it really happened. Its well written but im not used to books told solely from the main characters perspective without any speculating on whats happening to the other characters or what theyre feeling etc. A really interesting book though
The Cave by Dan Frolec is an enthralling and horrifying true cave diving tragedy which took place in 2002 in beautiful Croatia. Dan narrates the story including trip organizing from home in Prague to Croatia, dives, delicious food, camaraderie, and the harrowing realization their diving team member and friend, Michael, hasn't ascended from the depths on a night dive. A Croatian diver who arrives the following day with a group of officials doesn't return from the water, either. But that's not all. Dan and another friend are arrested on suspicion of murder as a knife was discovered in Michael's chest.
The next portion of the book describes prison life including fellow inmates, unexpected advantages of canteen, pršut, attitudes of staff, and what Dan did to keep occupied for five weeks. Meanwhile, his girlfriend secured a lawyer to work on his behalf.
I live in Croatia part time and knew of this story but am pleased to read it in book form by Dan himself. The agonizing realization that his friend couldn't possibly have survived must have been terrible. And to be wrongfully accused of his murder? Wow.
Dan's personal reflections at the end are excellent and I'm glad he included them as well as prison notes and photos.
You needn't be a diver to become immersed in this captivating book, just a curious mind.
This is a really interesting case and one which I knew nothing about, so I had no preconceptions. The presentation was like journal entries which made me feel like I was right there as events unfolded, with little editing or post-event analysis. It showed how you can be at the mercy of authorities and the risks associated with being out of your usual comfort zone. It also showed how life can change in an instant - one minute they were on holiday, the next fighting for freedom. A very compelling book.
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