Mack Bolan, alias The Executioner, is a fictional character who has been serialized in 631 novels with sales of more than 200 million books. Created by Don Pendleton, Bolan made his first appearance on the printed page in The Executioner #1: War Against the Mafia (1969). Pendleton wrote 37 other novels featuring Bolan, often referred to as the "Mafia Wars". In 1980, Pendleton sold his rights to the character to Gold Eagle, which hired a number of ghostwriters to continue publishing Bolan monthly, to satisfy reader demand worldwide. Don Pendleton remained credited as the sole author and supervised these new adventures, which took the Bolan character all over the world fighting terrorism. This new series of books featured Bolan as a principled warrior fighting larger-than-life adversaries in the spirit of a tougher, American version of James Bond. The demand for the books continued, and Gold Eagle began releasing as many as 15 titles annually. In 2014, more than a dozen Mack Bolan novels were being published every year worldwide by Gold Eagle Books, a division of Harlequin Books. Additionally, Bolan was "spun off" into several new adventure book series which also carried the Mack Bolan/Don Pendleton names.