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

Daniel Kraus is an award-winning, New York Times bestselling horror writer and co-author of both Trollhunters and The Shape of Water with Guillermo del Toro. Kraus has won a Scribe Award and two Odyssey Awards, has been a Library Guild selection, a YALSA Best Fiction for Young Adults recipient, a Bram Stoker finalist, and more. His work has been translated into more than twenty-five languages. Daniel lives in Chicago. Visit him at danielkraus.com.