Moonlight Made Madness

From publisher blurb: A Bronze Age Britain scenario for investigative weird, occult and horror roleplaying. Compatible with percentile-based Lovecraftian roleplaying games, easily converted to other systems and settings. The arrival of spring has brought warmth and optimism to Woikós Helémesi, a small community near the great Sehimréys river. The mood is shattered at full moon, when a villager succumbs to a mysterious sickness. Foreboding spirits haunt the land, and those who have learned the hidden tales of old must seek out the truth, in the tangled wilderness where the People do not willingly tread. Something terrible is on the verge of breaking free, and their fragile community faces annihilation. The waning moon shines thinly now, but there is little time before it waxes once more and draws doom upon them. Content warnings: disease, body horror, infestation