Synopsis by Hans J. Wollstein
Although he appeared to have been killed by The Eagle in chapter 10 of Shadow of the Eagle, chapter 11 reveals that Pat Kelly (Ernie Adams) survived the attack and, although badly hurt, made it back to the carnival. When another skywriting plane lands without a trace of a pilot, Jean (Dorothy Gulliver), who climbs onboard, discovers that it is in fact radio controlled by The Eagle. But before the girl can escape, the mystery villain pulls a lever and the plane takes off. Craig discovers the control room and is about to take over the command of the plane when knocked out by the mystery villain.