Worn copy of Rolemaster Companion III, not writing but in book foil

The Rolemaster Companion (RoCo) is a collection of optional rules and spell lists for the Rolemaster fantasy role-playing system. Optional is the key word here; a Gamemaster should carefully examine each section of material before using it in his world or campaign. This
material runs the gamut from play aids that simply make the standard game mechanics easier to handle to very high-powered spells and optional rules. Most GM’s will not use everything in the RoCo; there is just too big a diversity in style and power level.