Lisi Harrison has written forty YA and middle grade novels including the #1 New York Times bestselling series The Clique, which has sold more than eight million copies, and the Monster High series. In 2021, Harrison launched two new middle grade book series, Girl Stuff and The Pack. Lisi lives in California, and in addition to her work as an author, she is the cofounder of House of Thrive, a wellness center that teaches tweens, teens, and parents how to have healthy, drama-free friendships. Visit her at lisiharrison.com or Thrive@myhouseofthrive.com.

Daniel Kraus is a New York Times bestselling writer and coauthor of both Trollhunters and The Shape of Water with Guillermo del Toro. Kraus has won a Scribe Award, the Bram Stoker Award, and two Odyssey Awards, and he has had his work named as a Library Guild selection, a YALSA Best Fiction for Young Adults recipient, and more. His work has been translated into more than twenty languages. Daniel lives in Chicago. Visit him at danielkraus.com.