Elvira, Mistress of the Dark #148

In the middle of an air show, Elvira is abducted by The Falconeers and taken to their secret Falconeer Island where Commander Falconeer's mind has been exchanged with a primitive caveman. Dressed as team member Lady Falconeer, Elvira uses a rocket pack to drive electricity from a lightning bolt into the machinery that will restore Commander Falconeer back to normal. Everything succeeds and all is well until the real Lady Falconeer arrives and Elvira has to make a hasty exit.