Published Mar 1971 by DC.
Cover pencils by Neal Adams, inks by Dick Giordano. Sinister Scream of the Devil's Harp!, script by Denny O'Neil, pencils by Curt Swan, inks by Murphy Anderson; Superman takes on Ferlin Nyxly, who is surprisingly fast, smart, and strong. 36 pgs. $0.15. Cover price $0.15.