Lily lives in the most beautiful place in the world: Summerview--a small hotel in the mountains that's been in her family for over a century. But Lily's parents are in financial trouble and are selling the hotel. Wait! Lily's great-great-grandfather's will mentions hidden treasure. Maybe if Lily and her friends Sia and Oscar scour the hotel from top to bottom they'll find the inheritance. Well, they'd better move fast: The hotel's buyers want to seal the deal today!