The final adventure in bestselling author Patrick Carman's delightfully wacky Floors trilogy! Taking mystery and adventure to the next level. It's not every day that a hotel loses its top floor. Then again, the Whippet Hotel is no stranger to wackiness. So when the entire floor is hoisted into the night sky by a nearly invisible airship, Leo and Remi know they're in for the ride of their lives. But little do the boys know just how amazing their voyage will become. They a