A new book in the legendary series by Tatyana Levanova! Masha Nekrasova - Draft - a wanderer who easily passes through the fabric of worlds. Of course, she didn’t tell her parents or classmates that she believed in the existence of dragons and wizards, werewolves and ghosts, plant people and tiger hedgehogs - and not only believes, but even saw with my own eyes. Who will believe in fairy tales? Who will believe in dreams? This time she found herself in a world of intelligent winds, where the rocks are like openwork castles, where migrating hedgehogs live on sparkling cobwebs, where the trees are lower than the grass, and people use sails to move around... The air wanderer Aeron delivers Masha to Kamennoe Heart, the city on the seven winds, where she ends up with the strange scientist Shtil, who is very interested in the whistle given to the girl by Aeron. Digging through old manuscripts, Masha learns for the first time about the Spell Weavers, a secret organization with which her new mission is connected...