Kami Garcia is the #1 New York Times, USA Today, and international bestselling co-author of the Beautiful Creatures and Dangerous Creatures novels. Beautiful Creatures has been published in 50 countries and translated into 39 languages. Kami's solo series, The Legion, includes Unbreakable, an instant New York Times bestseller, and its sequel, Unmarked, both of which were nominated for Bram Stoker Awards. Her other works include The X-Files Origins: Agent of Chaos and the YA contemporary novels The Lovely Reckless and Broken Beautiful Hearts. Kami was a teacher for 17 years before co-authoring her first novel on a dare from seven of her students. She is a cofounder of YallFest, the biggest teen book festival in the country. She lives in Maryland with her family.

Gabriel Picolo is a Brazilian comics artist and illustrator based in São Paulo. His work has become known for its strong storytelling and atmospheric colors. Picolo has developed projects for clients such as Blizzard, BOOM! Studios, HarperCollins, and DeviantArt.