The Door That Hates Decay

The entrance to Kairos Keep is a slab of basalt taller than two ogres, its seams choked with white salt and brittle moss. A sickly green sheen leaks from three silver sigils worked into the stone, and the air around it tastes of old crypts and sweet rot. Each breath sends a chill through the teeth, as if the door is listening for the names of the dead. When anyone nears the threshold, the glyphs faintly pulse like a slow funeral heartbeat.