It's bath time! All the little piggies have had lots of fun playing, and now they're dirty, muddy, and covered in paint. But their mamas aren't worried—they have just the machine to turn this Herculean task into an adventure. Anyone who has ever been captivated by the swaying brushes and spinning jets of soap and water at the car wash will be in hog heaven as Arthur Geisert's intricate etchings reveal the inner workings of an enormous contraption that can lather and scrub a whole farm full of dirty little piglets in no time at all—and that's not just a bunch of hogwash!