Source: Ulyana Karavaeva sets off on the road again - after all, Styopa Muravyov is in trouble. And the terrible inventor Bronze decided to poison all the bears in the northern forests. Moreover, the Crooked Beast had broken free again. It would be difficult for Karavaeva, but the mistress of the bears Valentina becomes her friend, and Sergeant Phase and the inventor Karavaev also get down to business. Amazing things are happening in the northern forests. Especially when Karavaeva arrives there. Contents:The first pilot of the city 7Skins for sale 34Ten parachutes 47The criminal escaped 68Hedgehogs are marching 85The Werewolf 103The poison of Doctor Bronze 124Muravyov was replaced 141Who lost? 152The pot came in handy 173The crossbills are returning 191Afterword 205