Kenneth MacDonald

A mysterious hypnotist reverts his beautiful assistant back into the form of a prehistoric sea monster that she was in a past life.

The Apaches are on the warpath and the Army must defeat them. Murphy's mission is to get a shipment of rifles, but they're stolen by greedy white traders with the help of mutinous soldiers.

A pair of Irish rebels have swashbuckling adventures in 1815.

Jack Bradon is tasked to reach the South Pole with a dirigible.

Undercover agent Mark Sheldon gets paroled to a remote tropical island with a diamond mine manned by slave labor run by sadistic Stephen Danel.