Southwest Arizona, a century ago. An uneasy truce exists between the remote control frontier community of Picture City and the neighboring Apaches. That delicate serenity is certainly shredded when the physiques of two white men are located hideously mutilated. The upset townspeople are certain the “savages” possess broken the treaty, but Billjohn Finley, the neighborhood Indian agent, fears that darker, even more unholy forces could be at the job. There’s a high, dark stranger around, who rode in wearing the useless men’s clothes. A stranger who may possibly not be entirely human.

Originally published like a mass-market Western in 1994, Shadow on the Sun has been largely overlooked by horror fans and general readers. But this story of supernatural terror is sure to chill the bloodstream of Matheson’s many supporters.