When the Celtic apprentice Iovan was guarding the sacred forest, he encountered the ancient tree corrupted by the black mud of Cthulhu. The moon rune failed and mutated vines bit people. In desperation, he turned to the poisonous-tongued Raven Star Track Priest. The two used the "Empty Hour" of the Celtic calendar to reverse the stars and use the moonlight prism to decompose entropic energy, but they uncovered the Roman caravan's conspiracy to smuggle the evil god's egg sacs with lead ore. When druid witchcraft collides with cosmic terror, Iovan must assemble the "Star Watch Alliance" across clans to tear a way out of nature amidst laughter and moonlight.
