Thomas Brezina is widely known as a children's writer, the author of funny books for children and teenagers, as well as many popular programs for children on radio and television. He wrote a series of detective stories for teenagers, “The Knickerbocker Crew.” Young readers are offered a book that includes two stories, “SOS from the Ghost Ship” and “The Hunt for the Green Shark.” The names themselves indicate that extraordinary adventures of young detectives await you; everything is here - ghosts and vampires, monsters and UFOs, gangsters and swindlers.