Returning to the United States, Morgan dons a costume and changes his name to Lash Lightning (as opposed to maintaining a secret identity).
[1] His early foes include the Mummy, an insane college professor wrapped in bandages infused with radium, and the mad scientist Mastermind.
[5] Later, Lash’s friend Isobel Blake gains powers identical to his when he accidentally charges her with thousands of volts of electricity; she dons a costume similar to his and becomes his partner, Lightning Girl.
Lightning Girl is one of the sixteen heroes to have hopped sixty years into the future in the pages of the Metahuman Press serial Living Legends.
In 2008, Lash Lightning and Lightning Girl appeared in flashback in Dynamite Entertainment’s Project Superpowers #0; in the one-shot Project Superpowers: Chapter Two Prelude, they appear in this line as part of a team called The Super-Mysterymen (presumably named after the Ace title Super-Mystery Comics).