Proof of Concept
ByPublisher Description
"...a gripping, well-paced plot and a victim backstory that quickly ups the emotional stakes." -Tar Vol
"...a nice twist on a locked-room mystery that makes good use of its setting to provide a ticking clock element." -Locus Magazine
36 hours until the interstellar cruise ship Radost arrives at the First Disembarkation Point.
36 hours before all passengers can leave without consequence.
36 hours for Orli, the ship's detective, to discover the killer of crewman Riley Kalb.
A stunning thriller from one of the best science fiction writers in the business.
Download the free Fable app

Stay organized
Keep track of what you’re reading, what you’ve finished, and what’s next.
Build a better TBR
Swipe, skip, and save with our smart list-building tool
Rate and review
Share your take with other readers with half stars, emojis, and tags
Curate your feed
Meet readers like you in the Fable For You feed, designed to build bookish communitiesNo Reviews
Start a Book Club
Start a public or private book club with this book on the Fable app today!FAQ
Do I have to buy the ebook to participate in a book club?
Why can’t I buy the ebook on the app?
How is Fable’s reader different from Kindle?
Do you sell physical books too?
Are book clubs free to join on Fable?
How do I start a book club with this book on Fable?