Scott Westerfeld is the author of the Leviathan series, the first book of which was the winner of the 2010 Locus Award for Best Young Adult Fiction. His other novels include the New York Times bestseller Afterworlds, the worldwide bestselling Uglies series, The Last Days, Peeps, So Yesterday, and the Midnighters trilogy. Visit him at ScottWesterfeld.com or follow him on Twitter at @ScottWesterfeld.

Margo Lanagan has been publishing stories for children, young adults and adult readers for twenty-five years. She has won numerous awards, including four World Fantasy Awards. Two of her books have been Michael L. Printz Honor books and she has been shortlisted for the Hugo and Nebula awards and for the Los Angeles Times Book Prize in the young adult division. Visit Margo at her blog, AmongAmidWhile.Blogspot.com, or follow her on Twitter at @MargoLanagan.

Deborah Biancotti has written two short story collections, Bad Power and A Book of Endings. She’s been nominated for the Shirley Jackson Award and the William L. Crawford Award for Best First Fantasy Book. You can find her online at DeborahBiancotti.com or on Twitter at @Deborah_B.

Amber Benson is a writer, actress, and director who has written for the stage, screen, books, and comic books. She is perhaps best known for playing the role of "Tara" on the hit television show Buffy the Vampire Slayer. Amber lives in Los Angeles, California.This is her first children's book.