This story, true or false, details the Phantom's effort to save the Earth and is told and retold at numerous camp fires around the jungle:

A massive space ship containing an alien race that is half man-half demon is approaching Earth on a conquest mission, but before the invasion can take place two sentries are sent down to the surface to test a random specimen of the planet's intelligent beings to see if it can be easily defeated. The Phantom is chosen for this gruelling test...