A hilarious picture book from Underwater Dogs author and photographer Seth Casteel--just in time for summer You're invited to the splashiest, splashiest, doggone friskiest celebration of the summer--a puppy pool party Join dozens of pups as they paddle, dive, and cannonball the day away. This irresistible new Underwater Dogs adventure from bestselling author and photographer Seth Casteel is packed with never-before-seen...