12. Wyrm LordCait and Phoenix walked through the shadows of a damp, dripping corridor, deep beneath the halls of Caer D'nar. They'd descended staircases lined with stone, but now they were in a rough tunnel cut through the natural rock. Phoenix carried a torch but its flame barely burned, as if there wasn't much air. Cait peered into each side-passage they passed but could hear and see nothing. The air was cold and damp on her face and smelled of earth.
“What is this place?” she asked.
His voice sounded hollow as he replied over his shoulder. “A mine, originally. This is the reason Caer D'nar stands where it does. There was a rich seam of wyrmfire here.”
“I don't know what that is.”
“Forgive me. It's sometimes called brimstone. It's what the wyrms of old consumed to give them the power
