Sarah Mlynowski is the New York Times and USA Today bestselling author and coauthor of over fifty books for teens, tweens, kids, and adults, including the Whatever After series, the Best Wishes series, and the Upside-Down Magic series, which was adapted into a Disney Channel movie. Originally from M...

Sarah Mlynowski is the New York Times and USA Today bestselling author and coauthor of over fifty books for teens, tweens, kids, and adults, including the Whatever After series, the Best Wishes series, and the Upside-Down Magic series, which was adapted into a Disney Channel movie. Originally from Montreal, Sarah now lives in Los Angeles with her family. Visit her online at sarahm.com.

Christina Soontornvat is a three-time Newbery Honoree, a Sibert Honoree, and a Kirkus Prize winner. Her highly acclaimed backlist includes the middle grade books The Tryout, The Squad, The Last Mapmaker, A Wish in the Dark, and All Thirteen; the picture book To Change a Planet; and the chapter book series Diary of an Ice Princess, Legends of Lotus Island, and the highly anticipated NEXT series, The Luckies, with Sarah Mlynowski. Christina lives in Tennessee with her family. Learn more at soontornvat.com.