Proto-Indo-European mythology realm of Midgard. Other dragon-slaying myths are also found in the Germanic tradition. In the "Völsunga saga", Sigurd slays the dragon Fafnir and, in "Beowulf", the eponymous hero slays a different dragon. Reflexes of the Proto-Indo-European dragon-slaying myth are found throughout other branches of the language family as well. In Zoroastrianism and Persian mythology, Fereydun, and later Garshasp, slays Zahhak. In Slavic mythology, Perun, the god of storms, slays Veles and Dobrynya Nikitich slays the three-headed dragon Zmey. In Armenian mythology, the god Vahagn slays the dragon Vishap. In Romanian folklore, Făt-Frumos slays the fire-spitting monster Zmeu. In Celtic mythology,
Monster Mythology that this book follows a similar format to 2nd edition "Legends and Lore", except that while that book dealt with nine historical and two fictional human cultures, "Monster Mythology" deals with nonhuman pantheons. Unlike the culture-specific gods in "Legends and Lore", the gods in this book are for any campaign setting. Approximately 26 of the deities found in "Monster Mythology" were previously found in the first edition "Deities and Demigods" book, while the majority did not. The introduction has several sections after the lead. Running Divine Beings provides notes for the Dungeon Master on how and when deities interact with