Francis Xavier Gordon, hero of "The Lost Valley of Iskander" and "Son of the White Wolf", was a living legend in the middle and far East. They called him El Borak, The Swift, a title earned by his uncanny ability with gun, knife and sword.

"Three-Bladed Doom" tells how the mighty El Borak, acting as one-man bodyguard and secret service, fights to save the Emir of Afghanistan from the Hidden Ones, a mysterious and deadly band of assassins with a unique weapon - the three-bladed dagger.