Suddenly without any warning he trotted splash into water! Ugh! it was icy cold. That pulled him up sharp and short. He did not know whether it was just a pool in the path, or the edge of an underground stream that crossed the passage, or the brink of a deep dark subterranean lake. The sword was hardly shining at

all. He stopped, and he could hear, when he listened hard, drops drip-drip- dripping from an unseen roof into the water below; but there seemed no other sort of sound.
“So it is a pool or a lake, and not an underground river,” he thought.

Chapter 5 Riddles in the Dark