Captain Underpants and the Sensational Saga of Sir Stinks-A-Lot: Color Edition (Captain Underpants #12)

The Princess in Black

The Princess in Black Takes a Vacation

Dragon Gets By: An Acorn Book (Dragon #3)

The Princess in Black and the Hungry Bunny Horde

Ricky Ricotta's Mighty Robot vs. the Naughty Nightcrawlers from Neptune (Ricky Ricotta's Mighty Robot #8)

The Bad Guys in Open Wide and Say Arrrgh! (The Bad Guys #15)

The Princess in Black and the Perfect Princess Party

Ricky Ricotta's Mighty Robot vs. the Mutant Mosquitoes from Mercury (Ricky Ricotta's Mighty Robot #2)

Sonic vs. New Yoke City

Ricky Ricotta's Mighty Robot vs. the Unpleasant Penguins from Pluto (Ricky Ricotta's Mighty Robot #9)

Dragon's Halloween: An Acorn Book (Dragon #4)

Ricky Ricotta's Mighty Robot (Ricky Ricotta's Mighty Robot #1)

Dog Breath: The Horrible Trouble with Hally Tosis

Why?

The Bad Guys in The Big Bad Wolf (The Bad Guys #9)

Ricky Ricotta's Mighty Robot vs. the Jurassic Jackrabbits from Jupiter (Ricky Ricotta's Mighty Robot #5)