Henderson's Boys is a series of young adult spy novels written by English author Robert Muchamore. The series follows Charles Henderson, the creator of the fictitious CHERUB organisation. The novels are set between 1940 and 1945, during the Nazi occupation of France in World War II. Throughout the novels, Henderson leads a series of war missions, aided by children. Henderson's Boys is a spin-off of the CHERUB series, which centres on the peacetime version of the organisation during the 2000s and 2010s. Henderson's Boys reveals various features of the CHERUB organisation's origins.