Southwest Arizona, a century ago.  An uneasy true exists between the remote frontier community of Picture City and the neighboring Apaches.  That delicate peace is shredded when the bodies of two white men are found hideously mutilated.  The angry townspeople are certain the “savages” have broken the treaty, but Billjohn Finley, the local Indian agent, fears that darker, more unholy forces may be at work.  There’s a tall, dark stranger in town, who rode in wearing the dead men’s clothes.  A stranger who may not be entirely human . . . .Originally published as a mass-market Western in 1994, Shadow on the Sun has been out of print for years and was largely overlooked by horror fans and general readers.  Now at last this forgotten tale of supernatural terror returns to chill the blood of Matheson's many fans.