One day Sam, the most scaredy-cat kid in the whole world, makes a terrifying discovery. It's not Frankenthaler the monster. It's her friend—Kerry! Kerry, the second most scaredy-cat kid in the whole world, also makes a terrifying discovery. It's not Leonardo the monster. It's his friend—Sam! "AAAAH!" yells Sam. "EEEEK!" yells Kerry. Something has to be done. Something BIG. But what?