Doctor Death returns! The most maniacal member of Yale's Skull and Bones society, super scientist Rance Mandarin, is back with a new scheme to hurl mankind back to the Dark Ages, where he believes humanity belongs. Master of Zombies and malevolent elementals, Death seeks to raise the ultimate army of the Undead-mummies! Once more, Jimmy Holm, criminologist and occultist, musters the power of modern science to hold back the sinister tide that threatens to swamp the planet. This time, the supernatural detective must venture from the civilization he strives to protect. From the lights of Broadway to the musty tombs of Egypt, the battle rages. A clash of indomitable intellects, a contest of steely wills, pure light versus the blackest darkness-this is the riveting tale of The Gray Creatures! Chapters: #1 The Gray Creatures #2 Marked for Slaughter #3 Master of Carnage #4 Egypt's Sorcery #5 Dead Man Speaks #6 King of Terror #7 Lair of Death #8 Creatures from Hell #9 Death's Bargain #10 Monster of Tortu