Library Manager
Manage your library—your way. Keep a running list or organize archived books into little stacks. i.e. Beach Reads, Cozy Covers, True Crime, etc.
The Submarine Plans
A Mystery Short Story by Agatha Christie
Companion Book to the Hercule Poirot Series
In Agatha Christie's short story, Poirot is summoned to the home of the head of the Ministry of Defense, to investigate the theft of top-secret plans for a new submarine.
Follow This Author
Sign up & we'll email you when a new title is available for pre-order or hits the bookshelf
Little Stacks of Mystery
Best Mystery Books for Summer That Will Keep You Hooked on the Beach
Six irresistible crime thrillers packed with twists and tension for your summer escape.
Midsummer Mysteries for the Longest Day of the Year
Seven gripping titles where the sun stands still and nothing is as it seems.
Mind-Boggling Mysteries By LGBTQ+ Authors
Filled with mystery and suspense, these books deliver unforgettable stories with deeply complex characters.
Get Mystery eBook Deals
Curated reads, irresistible prices—subscribe now