. . . "Scooby-Doo! Trick or treat!" . "Scooby-Doo in Trick or treat!" . "The Mystery, Inc. team solves a number of mini-mysteries featuring aliens, monsters, and ghosts. In addition, in monsters of the world segments, Velma teaches about werewolves and Medusa." . . . "Trick or treat!" . . . . . . "Graphic novels" . "Comic books, strips, etc" . . .