Most nerve gases cause death within thirty seconds to five minutes after skin contact,” Houk said. “But T-139 isn’t that merciful.” “Merciful!” Frank Autry said, appalled. “T-139 isn’t just a killer,” Houk said. “That would be merciful by comparison. T-139 is what military strategists call a demoralizer.” Copperfield said, “It passes through the skin and enters the bloodstream in ten seconds or less, then migrates to the