On his first visit to the mouse amusement park, Albert claims he is not afraid, he simply does not like rides that go up and down, left and right, or around and around, but things change when he and his sister Wanda accidentally ride the roller coaster.
By flipping the pages, the reader may view animated illustrations that follow Ricky Ricotta, a small mouse, his giant flying robot, and his annoying cousin Lucy as they battle the nightcrawlers from Neptune that are invading through a wormhole.
After getting a fluttery feeling while helping Mouse make valentines for each of their friends, Mole sends her a series of notes and gifts, signing them "your secret valentine."