2002 · Kaynak kitap (oyunu geliştirmek için kurallar/seçenekler)

The Slayer's Guide to Harpies

This fantasy roleplaying supplement examines harpies as intelligent, cruel predators rather than simple low-level monsters. It covers their physiology, subspecies, habitats, society, and instinctive use of small-unit tactics, with guidance for running them as opponents at a range of character levels. The book also provides roleplaying advice, encounter and scenario ideas, and a complete harpy lair, the Caves of Thunder, ready to add to a campaign.