Evdokia and Sebastian, under the guise of a student named Pan Sigizmundus, set off to the Grey Lands to save the missing Likhoslav. On the way, the brave travelers will have to spend the night in a castle with monsters cleverly pretending to be people, meet innkeepers—werewolves—who are preparing pies from guests, and also encounter a romantic, lovestruck vampire, a vicious swamp undine, and other non-humans. But will Besa and Eve manage to reach the main goal and save Likhoslav? After all, it won’t be easy at all…