Calling All Boys #15

When Judge Baker's gold strike sets Arizona City buzzing with excitement, young Sheriff Tex Granger suspects something isn't quite right—and his hunch proves correct when he and his deputy discover the judge and his partner salting the mine to swindle the townspeople. After a tense confrontation at the claim, Tex uncovers a discovery far more valuable than fool's gold, turning the tables on the swindlers and proving that the real treasure lay hidden all along.

Bigbrain Billy intercepts an S.O.S. from a Mars expedition whose scientists are stricken with fever and whose medical supplies have been stolen by an invisible creature. Racing through space with the antitoxin, Billy and his companion Pete must locate the beast and retrieve the serum before it's too late. With ingenuity and quick thinking, Billy takes on the Martian menace to complete his urgent mission.