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No mortal man could frighten him, no more than the darkness could, nor the bones of his soul, the grey and grisly bones of his soul.

George R. R. Martin (2012). “George R. R. Martin's A Game of Thrones 5-Book Boxed Set (Song of Ice and Fire Series): A Game of Thrones, A Clash of Kings, A Storm of Swords, A Feast for Crows, and and A Dance with Dragons”, p.2659, Bantam
No mortal man could frighten him, no more than the darkness could, nor the bones of his soul, the grey and grisly bones of his soul.