This edition combines two action-packed works of Soviet writers E. S. Ryss and L. N. Rakhmanov. The story "The House in the Swamp," co-written by them, tells about the exposure of a German spy who gained access to an important discovery. The novel "Peter and Peter" belongs to E. S. Ryss. The reader learns about how the former pupils of the orphanage managed to save their friend from a false accusation of murder.