Middle school wasn't exactly stable before, but it becomes a real struggle when sixth grader Louison is given the strength and powers of a pony by a tiny pink toy pony that insists on being called Jean-Pierre? Now, Louison is saddled with the responsibility of reining in the monsters that are up to no good in her new school! It's time to horse around with Wonder Pony! Acclaimed writer and artist Marie Spenale presents a magical adventure full of friends and fun for anyone who's ever wished they had the power to save the day!