The Serpent Mound

Here's a nineteenth century sketch of the Serpent Mound.  The real one is outside Peebles, Ohio.  This is an important piece of archaeological Americana that figures into Witchy Eye, and it's my only geographical cheat in the novel; I moved the Mound to the junction of the Mississippi and Ohio Rivers and placed it on top of a non-existent bluff.  Apologies to the good people of Peebles, whom I robbed, and Cairo, Illinois, whom I flattened under many tons of rock.