Reg'lar Fellers Heroic Comics #14

Hydroman thaws from a frozen prison to discover that the mad scientist King Frio has enslaved pilots and is using a devastating freezing apparatus to encase the world in ice—and now Dick Wright is forced to help him. With the aid of an aviation mechanic, Hydroman must free the captive pilots, sabotage Frio's icy fortress, and stop the villain's catastrophic plan before it's too late.

When a young hero calling himself Rainbow Boy encounters Hydroman, the two strike up an alliance to stop a criminal ring stealing helium for enemy forces—but Hydroman is ambushed and knocked unconscious before they can coordinate their first move. Racing to uncover the gang's plans on his own, Rainbow Boy infiltrates their operation, discovers their scheme to deliver the stolen helium via submarine and foreign warship, and must use his remarkable ability to transform into blinding light to sabotage the delivery and track the criminals back to their secret warehouse hideout. With the gang's truck convoy heading out at dawn carrying their ill-gotten cargo, Rainbow Boy makes his stand to stop them once and for all.

The Music Master, fresh from capturing the Mad Fiddler, seeks a quiet escape at a local carnival—only to find himself ensnared by the Human Battery, a disgruntled circus performer nursing a grudge against the carnival owner, Sam Wilson. With the young boy Danny and his father caught in the chaos, the Music Master must outwit a villain whose power lies not in music, but in the electric charge of betrayal.