“The Five Find-Outers” is a series of 15 books by the English writer Enid Blyton. Books in this series were published from 1943 to 1961. Five children spend their holidays in a small town called Peterswood. Every time they arrive, a crime occurs in Peterswood, which the young detectives investigate, certainly ahead of the city constable Mr. Goon.

The police learned that a dangerous criminal was hiding in a small town. His special feature is the scar above his upper lip! Not enough? But not for members of the detective club “Five Young Detectives and a Faithful Dog.” After conducting an investigation, Fatty is sure that the criminal is hidden by a strange family - a brother, sister and their elderly mother. Or maybe the criminal is one of them? To check his suspicions, Fatty decides to take a desperate step...