The Brambleheart Seal

Deep within the choking thicket, a circular stone dais sits smothered by black, thorny vines. The air is heavy with the scent of damp soil and iron. Three concentric stone rings form the surface of the dais, each etched with jagged, glowing violet runes that thrum with a low, vibrating hum. At the center stands a pedestal holding a crystal jar that contains a pulsating, necrotic heart of wood. A single, straight 'Blood Groove' is carved from the center of the dais to the outer edge, acting as an alignment marker for the rotating symbols. When the rings are moved, the ground beneath slightly tremors, and the violet light flickers with a ghostly intensity.