The Book of Sorcery by Dan Bress and Ed Konstant, one of the many 3rd party supplements that offered alternative spell casting rules for D&D (Bob Charrette cover – his name is in the runes on the pentagram, Little Soldier Games, 1977)
The Book of Sorcery by Dan Bress and Ed Konstant, one of the many 3rd party supplements that offered alternative spell casting rules for D&D (Bob Charrette cover – his name is in the runes on the pentagram, Little Soldier Games, 1977)