Softcover edition.

The skies over California explode with blood-red energies that resemble demon cyclones, but behave like intelligent life.

Nothing can stand in their terrible path. Men, machines, even buildings are devoured by the all-destroying Desert Demons. What are they? What do they want?

Far away in his Fortress of Solitude, Doc Savage receives the summons to danger. Radioing his small band of fighting specialists, the mighty bronze man orders them to rush to Los Angeles, prepared to combat the otherworldly menace.

But this time it’s different. This time it’s personal…

For one of their own has fallen victim to the unstoppable, unearthly things.