James Riley lives in Virginia. He is the author of Half Upon a Time, Twice Upon a Time, and Once Upon the End as well as the Story Thieves series.
Vivienne To has illustrated several books, including The Underland Chronicles by Suzanne Collins and the Randi Rhodes, Ninja Detective series by Octavia Spencer. As a child, she had two pet mice escape. She currently lives in Sydney, Australia, with her partner and her ginger cat. Visit her at VivienneTo.com.