Carman, Patrick. Floors / Patrick Carman. - New York: Scholastic Press; 2011. - 261 p. ill. - Floor trilogy; 1 . ISBN: 9780545255196 Subjects--Topical Terms: Hidden floors. Strange puzzles. Mysterious stories. --Fiction. Hotels. Eccentrics and eccentricities. Subjects--Facted Index Terms: --Fantasy. Index Terms--Genre/Form: Mystery.