Christina Soontornvat grew up behind the counter of her parents’ Thai restaurant in a small Texas town with her nose stuck in a book. She is very proud of both her Thai and her Texan roots, and makes regular trips to both Weatherford and Bangkok to see her beloved family members (and eat lots and lots of Thai food!). Christina is the author of the fantasy middle grade series, The Changelings, and the early chapter book series, Diary of an Ice Princess. Her forthcoming books include the middle grade fantasy, A Wish in the Dark, and All Thirteen, a nonfiction account of the Thai Cave Rescue. In addition to being an author, Christina holds a B.S. in Mechanical Engineering and a master’s degree in Science Education. She spent a decade working in the science museum field, where she designed programs and exhibits to get kids excited about science. She is passionate about STEM (science, technology engineering, and math), and loves learning new things. She lives in Austin, Texas with her husband, two young children, and one old cat.

Sarah was born in Montreal, Canada. After graduating with an honors degree in English literature from McGill University, she moved to Toronto to work for Harlequin Enterprises. While she never met Fabio, she used her romance publishing experiences to fuel her first novel Milkrun. Since then, Sarah has written four additional novels for adults: Fishbowl, As Seen on TV, Monkey Business, and Me vs. Me; the New York Times bestselling middle grade series Whatever After; the middle grade series Upside-Down Magic (with Lauren Myracle and Emily Jenkins); and the teen novels Bras & Broomsticks, Frogs & French Kisses, Spells & Sleeping Bags, and Parties & Potions (all in the Magic in Manhattan series), as well as Gimme a Call, Ten Things We Did (And Probably Shouldn't Have), Don't Even Think About It, Think Twice, and I See London, I See France. Along with Lauren Myracle and E. Lockhart, Sarah also wrote How to Be Bad, and along with Farrin Jacobs, she wrote See Jane Write, a guide to writing. Sarah also co-edited two bestselling charity collections (Girls' Night In and Girls' Night Out), and has contributed to various anthologies (American Girls About Town, Sixteen: Stories About That Sweet and Bitter Birthday, 21 Proms, First Kiss (Then Tell), Fireworks, and Vacations from Hell). Sarah is also a co-founder of OMG BookFest, a celebration of books aimed at the early to middle grade reader (ages 7-12) that brings together commercial and award-winning authors with underserved local communities for an exciting experience of books, games and activities. Sarah's books have been translated into twenty-nine languages and optioned to Hollywood. She now lives in New York City with her husband and two daughters.