The white dragon, black dragon, red dragon and brass dragon reappeared in the original "Dungeons & Dragons Basic Set" (1977). The six dragons from the 1974 boxed set appeared in the "Dungeons & Dragons Basic Rulebook" (1981), and again in the 1983 version of the "Basic Set" (1983). These six appeared along with the gemstone dragons (crystal dragon, onyx dragon, jade dragon, sapphire dragon, ruby dragon and amber dragon), and the dragon rulers (Pearl (the Moon Dragon), Ruler of all Chaotic Dragons; Diamond (the Star Dragon), Ruler of all Lawful Dragons; Opal (the Sun Dragon), Ruler of all Neutral Dragons; and the Great One, Ruler of All Dragonkind) in the "Dungeons & Dragons Rules Cyclopedia" (1991).