Description Invisible, secret, deadly, the Masked empire wielded its dread power of darkness throughout the nation.
America, faced with certain disaster, placed her chance of survival in one man\'s capable hands-and prayed that the warrior gods might smile once more upon the miracle man of her Secret Service-Jimmy Christopher.
Havoc and ruin followed the terror-torn thousands who fled the country to escape the Thirteenth Darkness.
Description Invisible, secret, deadly, the Masked empire wielded its dread power of darkness throughout the nation