"Just after midnight, the famous Orient Express is stopped in its tracks by a snowdrift. By morning, the millionaire Samuel Edward Ratchett lies dead in his compartment, stabbed a dozen times, his door locked from the inside. Without a shred of doubt, one of his fellow passengers is the murderer. Isolated by the storm, detective Hercule Poirot must find the killer among a dozen of the dead man's enemies, before the murderer decides to strike again."...

When a woman is murdered with the venom-dipped dart of a South African blow-gun on a routine flight over the English Channel, none of the other passengers witness anything, including Hercule Poirot, who had been fifteen feet away from the victim.

Sheila Webb expected to find a respectable blind lady waiting for her at 19 Wilbraham Crescent--not the body of a dead man surrounded by clocks. When old Miss Pebmarsh denies sending for her in the first place, or of owning the clocks, it's clear they are going to need a very good detective.

Amy Leatheran is hired by archaeologist Dr. Leidner to work as nurse and companion for his wife who is subject to fits of nervous terrors. During their travel to an ancient site in the Iraqi desert, Mrs. Leidner proves to be demanding, yet fascinating. She gradually warms to Amy and, taking her into her confidence, she reveals the source of her terror. Events come to a terrible climax that results in murder. Hercule Poirot must rely on a drop of blood...