The first book tells how a young man, as a result of being kidnapped and sent back in time, ends up in a Soviet pioneer camp. Having received the task of being an assistant counselor there, the main character faces a lot of difficulties, but finds his classmate in the camp. The girl also found herself in the past and wants to get out, but she is unable to cope with this task alone. Having united, Sergei and his classmate will have to discover the world of not only guitar songs in front of a fire, but also vampire society.