It is not so easy to become a member of the Guild of Undermountain Hunters who wander between worlds. But, to everyone’s surprise, the most famous of them, Shengi Owlpaw, took not even one student, but three at once. If only he had known in advance what adventures these three would drag him into! The investigation of a mysterious murder and the fight against a formidable demon, a war with the ghosts of long-dead magicians and captivity on a pirate ship are just part of what the teacher will have to endure at the mercy of his students. In addition, Shengi does not suspect that each of the teenagers has a secret that he hides from his friends and teacher.