From the introduction: This Appendix expands the Old World Bestiary by presenting ready-to-use game statistics for the various types of Skaven found in the Under-Empire. Clanrats, Clan Eshin Night Runners, Clan Moulder Packmasters, Clan Pestilens Plague Monks, and Clan Skryre Skirmishers all appear in the Old World Bestiary. Each entry assumes the Skaven is midway through his current career.