From publisher blurb: The Ryngothunn were said to be the children of the frost giants, but even so the cold of the farthest North had been unbearable. Now at last the Fimbulwinter was over; the sun reappeared but it was not the old sun. To the north of the mountains, deep snows that had never been true ice boiled away to nothing, leaving an ancient place that had been hidden for untold ages, a desert under a red sun. Pitting alien vikings against alien monsters, Raiders of Ryngoth is a World Book companion guide & expansion for the Transdimensional Adventures RPG giving further detail of the icy planet of Ryngoth, part of the Concourse system first described in the World Book. It contains maps and location descriptions for the Northlands, Verdant Lands and Desert sectors of the planet, as well as statistics and encounter tables for creatures, discussion of rules for native and interplanetary travellers, NPCs, and other information.