Andrew, his cousin Judy, and their robot pal, Thudd, have been lost on the neighbor's dog for one book already. And now it's bathtime for the dog. The bathroom is dangerous when you're the size of a flea! Hot water thunders down from the faucet like Niagara Falls. Soap bubbles float overhead like monster blimps! And when someone pulls the plug, will Andrew and his friends survive to see book number three? Or will they disappear down the drain...forever?