About the book: year / The second book of the fantasy series "Insomnia" by the writer Elena Bulganova, author of the popular series "Eternals". Alyosha and Iolanta learned a lot at the camp for Atlantean teenagers and in the underground worlds. But soon an avalanche of strange events falls on the children: the school coach drags students into eerie survival games, the camp director and his wife disappear without a trace in the Lower World, someone powerful seems to be testing the strength and abilities of young Atlanteans, provokes them to open up...Who wants to pit humanity against the most ancient races on Earth? And what does the mysterious Order have to do with all this??