Beyond the deepest delves of the Dungeon of Graves lie realms undreamt of by adventurers who consider a mere descent into Rappan Athuk proof enough of their mettle! Here, ancient powers still hold sway, passages connect that infamous dungeon to the Cyclopean Deeps, and opportunities for acquisition and misadventure abound. Rappan Athuk: Under Realms, by Anthony Pryor and Bill Webb, presents an estimated 250–300 pages of subterranean adventure in a library-bound hardcover, with rules for both OSR play (via The Necromancer’s Game) and 5th Edition games.

Here, then, is no prescribed procession of encounters leading obediently toward a foreordained conclusion. The referee receives another extensive region of the Rappan Athuk sandbox, suitable for a single hazardous expedition, passage to the Cyclopean Deeps, or a protracted campaign against the Serpent Empire itself. Let the players determine their ambitions, count their provisions, and make such preparations as they deem adequate. The Under Realms await — and the Ss’aa have uses for those who arrive unprepared.