"The Wolf Slayer and Mr Sixgun" is a vintage paperback novel set in the Western frontier, featuring a thrilling narrative filled with action, adventure, and historical fiction. Published by Ace Books in 1964, this Ace Double Novel explores the world of gunslinging and survival in the Old West, with captivating illustrations and drawings. The story, authored by Brian Wynne, William Vance, and William E. Vance, is targeted towards young adults and adults who enjoy Western genre novels, offering a nostalgic glimpse into the wild west of the United States.