In the Bathroom
Andrew Lost #2

When Andrew and Judy's neighbor gives her dog a bath, microscopic Andrew and Judy find themselves washed off the dog and lost in the bathroom! They'll have to use their wits and Thudd's storehouse of facts if they're to survive run-ins with mold, mildew, and ocean of soapy water, and a predatory spider on their way back to the Atom Sucker.