HEATHER ALEXANDER was born in New York City, and now lives in New Jersey. She began her career editing children's books such as Goosebumps and Fear Street, before moving into writing. She has written over 40 books for children.

ANDRES LOZANO is an illustrator from Madrid, who currently lives in London. He lists his inspirations as nature, architecture, Franco-Belgian comics and film noir. His work is characterised by overlayed colors, textures and strong line work. He has worked with The Wall Street Journal, The New York Times, The Sunday Times, and Anorak.