Mark Lee Gardner is the author of To Hell on a Fast Horse, a dual biography of Billy the Kid and Pat Garrett. An authority on the American West, he has appeared on the History Channel, the Travel Channel, PBS’s The American Experience, NPR, and BBC Radio. He has written for the Los Angeles Times, the Daily Beast, True West, and American Cowboy. Gardner lives with his family at the foot of Pikes Peak in Cascade, Colorado. Nate Olson is an artist currently living in Boston. Originally from northeast Massachusetts, Nate spent his early childhood in a variety of places including Norway and England. He graduated with a BFA in Illustration from MASSART, and has been working as a freelance illustrator for the past 3 years. Nicolas Chapuis is a freelance comic book colorist and illustrator from Germany. He became involved in comics in 2007. Working on a freelance basis, he has colored for Arcana, Disney/Hyperion, Dynamite Entertainment, Image Comics, and Toykyopop. Notable titles he has worked on are Disney Hyperion's comic book adaptation of the first book in Jonathan Stroud's Bartimaeus Trilogy, The Amulet of Samarkand; Dynamite's adaptations of Robert Jordan's Wheel of Time series, and Image's Marineman series.