The grandfather of fifth-grader Gleb Borodaev was a famous detective writer, but he died before he could finish his last horror book. A novel based on a real story - the mysterious disappearance of man called Dachnik in Borodaev's country house. Gleb and his five classmates, including amateur detective Alik Detkin, decide to uncover this secret on their own.
A boy finds a magic stone that will allow people to live their lives over again. His bearded, noble Grandfather prefers his life of hardship, revolution and Communist victory to remain just as it is.
