The Big Book of Children's Detectives

Everyone, everyone, everyone loves detective stories! Under one cover, three thrilling tales have come together:
«The Detectives from Class 5 "A"» (author A. Kalinina),
«The Complicated Case of the Missing Sapphires» (author M. Lazarenkaya),
«Detectives on Vacation» (author A. Sukgoeva).
Mysteries, riddles, and tangled investigations await you! Quickly open the book and — let’s get to work!