Lisa McMann lives in Sacramento, California. She is married to fellow writer and musician, Matt McMann, and they have two adult children. Her son is an artist named Kilian McMann and her daughter is an actor, Kennedy McMann. Lisa is the New York Times bestselling author of over two dozen books for young adults and children. So far she has written in genres including paranormal, realistic, dystopian, and fantasy. Some of her most well-known books are The Unwanteds series for middle grade readers and the Wake trilogy for young adults.

Matthew J. Kirby is the critically acclaimed author of the middle-grade novels Icefall, which won the Edgar Award for Best Juvenile Mystery and the PEN Literary Award for Children's Literature; The Clockwork Three, which was named a Publishers Weekly Flying Start; The Lost Kingdom; The Quantum League: Spell Robbers; and Cave of Wonders, the fifth book in the Infinity Ring series.

He was born in Utah and grew up in Maryland, California, and Hawaii. Matthew is currently at work on his next novel.

Jennifer A. Nielsen is the acclaimed author of the New York Times and USA Today bestselling Ascendance Trilogy: The False Prince, The Runaway King, and The Shadow Throne.

She also wrote the New York Times bestselling Mark of the Thief trilogy: Mark of the Thief, Rise of the Wolf, and Wrath of the Storm; the stand-alone fantasy The Scourge; the historical thriller A Night Divided; the second book in the Horizon series, Deadzone; Book Six of the Infinity Ring series, Behind Enemy Lines; and The Traitor's Game, the first book in a series of the same name. Jennifer lives in northern Utah with her husband, their three children, and a perpetually muddy dog.