Princess Peach and the Treasure of Tarragon: a Princess Peach story

It's Peach's hardest challenge yet... Peach is heading off on another journey, but this time it's to Tarragon, the home of Terrible Terrence. Peach is going to help return stolen pirates' treasure to Tarragon's palace where it belongs. Luckily, Terrible Terrence shouldn't be there. But unluckily, she has to take her oh-so-proper cousin Coraline with her. Even worse, she has to act like a proper princess herself! It won't be easy, and there'll be many challenges along the way. But even with crabby cousins, vanishing valuables and bothersome bandits, can Peach still turn this proper outing into a proper adventure?