Sometimes actions that seem great, and sometimes simply impossible, are quite simple to perform. There is only one condition that needs to be fulfilled: people from the future are doing this “impossible.” With their technology, knowledge and training. And it would really be difficult, but all the events that need to be intervened in are already written in one book. In a book with such unusual things as the crystallization of an entire city and a huge ship made of wood in the prehistoric era... Why is the name of the project like that? Only people from the future know this, having sent instructions and drawings of a time machine to the past. Now all the people on the list can only guess at the meaning of their actions. Contains obscene language.