Rand Brooks

Eddie's science project, a robot, malfunctions.

Two greenhorns from the East are blamed for murder and claim jumping.

A banker is trying to cheat people out of their silver-rich land. Hoppy learns that the banker is in league with an outlaw gang.

Hoppy is an agent of the federal government investigating the counterfeiting of both U.S. and Mexican money. His only clues are the name "Mordigan" and a drawing of a comet.

Two speculators try to gain an advantage in the stock market when they hire former Pony Express riders to relay information to Denver, but Bat and one of his friends thwart their plan by using carrier pigeons.

One of Hoppy's Bar 20 ranch hands is tricked into participating in nefarious activities after being subjected to hypnosis.