Tom faces his biggest challenge yet—earning his Ghosthunting Diploma—as the adventures of this fun early-reader series continues.

Ghosthunter-in-training Tom has battled an Incredibly Revolting Ghost, a Gruesome Invincible Lightning Ghost, and a Totally Moldy Baroness. But nothing is more frightening than...final exams! To earn his Ghosthunting Diploma, Tom has to nab a Deadly Messenger—the hardest ghost of all to catch. And while on the hunt, he stumbles into the yucky, mucked-up lair of a mud-dripping minotaur that has built a ghoul army with the goal of world domination.