Almost all people on Earth know who Sherlock Holmes is. But not everyone knows that he has an equally talented descendant - Sherlock Holmes the Fifth. Like the famous ancestor, little Holmes meets his Watson, tests him for the role of assistant - and later boys found a detective agency. But their story is not just a classic detective, but a real brainstorming for readers, which will promote the development of logical thinking, teamwork and the formation of the right values. Sherlock Holmes V and his faithful assistant are waiting for a case of state importance: the investigation of the disappearance of the Towers ravens. But everyone knows very well: if there are no ravens left in the fortress of London, it and the whole kingdom are in danger of destruction.