how did the author get the idea for this book?

Nazario was inspired to write Enrique’s Journey after discovering that her friend and maid, Carmen, had left her four children behind in Guatemala so that she could earn money in the U.S. to support them. When Carmen's son Minor later arrived, having braved a journey fraught with dangers, he told Nazario about El Tren de la Muerte (The Train of Death) that migrants must brave to make it to the U.S.