Will Thomas, born in Bucks County, Pennsylvania, is a novelist who writes a Victorian mystery series featuring Cyrus Barker, a Scottish detective or "private enquiry agent," and his Welsh assistant, Thomas Llewelyn. The Barker/Llewelyn novels are set in the 1880s and often feature historical events, people, and movements. Martial combat is a recurring theme throughout this hardboiled series. In interviews, Thomas has said that Barker is based on men such as Richard Francis Burton and Edward William Barton-Wright, founder of Bartitsu.