What happens when a princess wishes for a unicorn . . . but gets a PUGICORN instead?

Every year, young princesses and princes arrive at Mrs. Paws' Haven for Magical Pets to pick a perfect unicorn pet. But this year Princess Ava arrived too late. There are no unicorns left . . . only Pugicorn! He's short and hairy. He can't sit still or gallop gracefully—and he certainly can't leap over rainbows. Can a pugicorn ever be a princess's best friend?