Published Feb 1971 by DC
Cover by Neal Adams. Featuring: 1 page House of Mystery introduction "Welcome to the House of Mystery..." drawn by Sergio Aragones; 10 page story "Fright" drawn by Alex Toth; 1 page Room 13 activity "Cut the dotted lines and put your fingers through the holes..." drawn by Sergio Aragones; 1 page Cain's Game Room filler "Cain's Game Room" drawn by John Albano; 1 page Cain's Gargoyles filler drawn by Sergio Aragones; 9 page story "A Witch Must Die!" written by Jack Miller and drawn by Ric Estrada & Frank Giacoia. 36 Pages, Full Color. Cover price $0.15.