The sound came again, heavier this time, reverberating through the hidden chamber in a slow, deliberate rhythm that made the crystal veins on the walls pulse in answer. Fang felt the movement before he heard the next impact. It travelled through the stone like a decision being made somewhere very far beneath them, then closer, then suddenly much too close for comfort.
Ren's expression sharpened at once.
Pax stepped back from the pillar. Wolf had already shifted his stance, his body angling so that he could cover the chamber entrance without fully blocking the others. The four of them remained still for a heartbeat, listening to the structure of the mansion complain under the weight of whatever was moving through its lower bones.
