Captain Underpants and the big, bad battle of the Bionic Booger Boy, part 2 : the revenge of the ridiculous Robo-Boogers : the seventh epic novel -- Big, bad battle of the Bionic Booger Boy, part 2
Captain Underpants and his friends, having dispatched Melvin Sneedley, the Bionic Booger Boy, must join the fray again when they realize they have forgotten about Sneedley's sidekicks, the Robo-Boogers.