The Rudest Alien on Earth

Sent to Earth on a research mission, Oluu, trying to be unnoticable, takes on many forms, including a Border Collie, a bird, and finally a pony, and becomes a companion to Molly Harkin, but Oluu can't stay out of trouble for long, especially when a boy named Jack takes a special interest in a certain pony. 20,000 first printing.