Secret Agent X # 1 The Torture Trust
Brant House
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Secret Agent X # 2 The Spectral Strangler
Brant House
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Secret Agent X # 6 Hand of Horror
Brant House
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Secret Agent X # 7 Octopus of Crime
Brant House
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Secret Agent X # 8 The Hooded Hordes
Brant House
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Secret Agent X #10 The Murder Monster
Brant House
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Secret Agent X #11 The Sinister Scourge
Brant House
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Secret Agent X #13 Devil's of Darkness
Brant House
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Secret Agent X #14 Talons of Terror
Brant House
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Secret Agent X #15 The Corpse Cavalcade
Brant House
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Secret Agent X #16 The Golden Ghoul
Brant House
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Secret Agent X #17 Monarch of Murder
Brant House
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Secret Agent X #20 Ringmaster of Doom
Brant House
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Secret Agent X #23 Dividends of Doom
Brant House
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Secret Agent X #24 The Fear Merchants
Brant House
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Secret Agent X # 3 The Death-Torch Terror
Brant House
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Secret Agent X # 9 Servants of the Skull
Brant House
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Secret Agent X #19 Horde of the Damned
Brant House
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Secret Agent X #21 Kingdom of Blue Corpses
Brant House
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Secret Agent X # 5 City of the Living Dead
Brant House
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Secret Agent X #12 Curse of the Waiting Death
Brant House
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Secret Agent X #18 Legion of the Living Dead
Brant House
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