I don’t even know how to describe this book. Thriller? Horror? It’s definitely claustrophobic and terrifying. Imagine going to sleep on a luxury passenger ship and waking up alone with all of the food and water missing. Slowly you find other passengers, but who can you trust? This book was horrifying and propulsive, and I read it in one sitting without stop. I’m gonna go take a Xanax now, so I can calm down.