Luminous Descent

Thalia swept the area and found no sign of Neil. The rock walls around her were smooth and unmarked. He'd gone into the river.

With a current like that, he'd have been swept downstream in seconds.

"Lia, don't do anything reckless. Underground rivers are dangerous." Alaric's voice came from somewhere above.

A vine dropped down, and Arthur and Alaric descended alongside it. Thalia grabbed hold and d