Doc's little brother Donny loves to finger paint. And his six-handed toy monster Glo-Bo makes finger painting even more fun! So when Chilly arrives in Doc's clinic covered with blue spots, Doc tracks down the reason for this case of "Mystery Pox": Glo-Bo didn't wash his hands after painting! Kids learn the importance of washing their hands often to avoid spreading germs...and blue pox...to others in this Level Pre-1 reader.