Vanishing Stair, , HarperCollins, Maureen Johnson,Children’s / Teenage fiction: Thrillers / suspense,Children’s / Teenage fiction: Action and adventure stories, true crime books; maureen johnson; ya lit; muder books; private school books; the vanishing stair; boarding school; riddles; truly devious,, Truly Devious, United States, en-UShttps://www.harpercollins.comtrue crime books; maureen johnson; ya lit; muder books; private school books; the vanishing stair; boarding school; riddles; truly devious, [BLURB],[CITY],,books, ebooks, biblet, Book2look