Otryvkin. The Stories of the Old House Continue

This is a continuation of the unusual adventures of the scholarly magician Oleg Otryvkin and his friends.
This time, Otryvkin has fallen in love. Of course, with a witch. However, it turns out that there is an insurmountable obstacle to happiness due to his grandfather's genetic experiments with magic, a professor-biogeneticist. Here, no one can help Otryvkin. There is only one option left: the whole friendly company must go to treat Otryvkin in Siberia, to the local shaman Fyodor. They have no idea what awaits them in the dark taiga. By the way, Fyodor also has no clue.
In general, everything is in the best style of Otryvkin: do no harm, but party fully!