Secrets of the Stone

From the publisher:

The moon, a ghastly orb ensconced in the sable folds of the night, casts its pallid light upon the ancient monoliths of Kaelthuun. These towering stones, erected by hands long since turned to dust, stand as sentinels of an eldritch power that defies the march of time. Beneath their shadowed girth, the air quivers with a nameless dread, as though the earth itself trembles at the dark rites performed upon its soil. The Normans, clad in iron and bolstered by the authority of kings, seek to extinguish this primal force, fearing the arcane might of those who wield it. But the stones whisper secrets older than empires, and the druids who guard them are bound not by flesh, but by the very essence of the earth and sky.