Obligation Flight: a Jack Riley mystery

On June 7th, 1927, Jack answered his telephone.

"Jack? This is George Marion . . . from the 24th Aero Squadron in France . . . I chased the kraut off your tail the day you crashed at Souilly Aerodrome during the War."

Duty-bound to help the man who saved his life, Jack agreed to the fighter pilot's urgent plea and found himself embroiled in a fifty year-old mystery in ancient Indian ruins in the New Mexico desert of Chaco Canyon. Myths and facts interweave in a blanket of suspense and in...