Welcome to Nefaria, where nearly every day the kingdom faces another evil scheme.

Most are harmless, though, so the citizens of Nefaria simply learn to live with the latest hijinks and go on with their lives. This includes Bobert Bougainvillea, who is much more concerned with the fact that he seems to be invisible. From the teachers in his school to his classmates, almost no one notices Bobert, no matter how visible he tries to be. Then everything changes when Bobert follows his classmates to a cursed gumball machine.

Before he knows it, Bobert is sucked into one of Nefaria's most villainous evil schemes, a plot that has been a long time in the making--too long, in the evil wizard Matt's opinion. And retreating into invisibility this time won't do, not when Bobert is the only one with the drive, knowledge, and--if his newfound courage doesn't fail him--bravery to foil Matt's plan.