The Thought-Men of Mercury: Escape Was Possible-If They Didn't Think

Mercury is no place for men. A narrow twilight strip separates blazing heat from endless night, and within that thin band of survival two explorers discover something no expedition ever reported-intelligent life that can reach directly into the human mind.

Terry Hall senses the presence first: a cold intrusion in his thoughts, as if unseen fingers are searching through his memories. When the Mercurians reveal themselves, their strange civilization seems harmless enough-telepathic thinkers wh...