Maureen Johnson is the #1 New York Times and USA Today bestselling author of many young adult novels, including the very murderous Shades of London series and the Stevie Bell mysteries: Truly Devious, The Vanishing Stair, The Hand on the Wall, and The Box in the Woods. She has also done collaborative works, such as Let It Snow with John Green and Lauren Myracle (now a movie on Netflix), and several books in the Shadowhunter universe with Cassandra Clare. Her books have been translated into more than thirty-five languages.