Francisco Díaz Valladares (born in Seville, 1950) began his literary career in 2003 and has since published more than twenty books, most of them aimed at Young Adult readers. His work has received several prestigious awards, including the Edebé award, the Alandar award, and the Lazarillo award — which he won with this novel.

An avid reader and tireless traveller, Díaz Valladares is known for setting his fast-paced adventure stories in places he has visited and cultures that have left a lasting impression on him. His fiction blends action, empathy, and a deep curiosity for the world and its people.