The third and final book of the “Erkegård” series by Evgeny Rudashevsky - writer, journalist and traveler, one of the winners of the VII season of the “New Children's Book” competition. Avendille. An abandoned city, which is easy to come to, but from which it is almost impossible to leave. However people still come here anyway. Some people want to get hold of something – or someone – unusual and get rich. For others, the goal is to figure out what happened here and close the mysterious door to the unknown world from where the black death entered the city. But in any case, not everyone will be able to survive. How not to fall into a trap city? How to seize luck and not only solve the secret of a ghost town, but also to leave it unharmed?