There was only one way out,--to the sea.

Height at the one end,--width and depth at the other.
It seemed useless to have any secrets.

He, David Helmsley, felt himself to be singular and apart, in that he had his own hidden mystery.

He often found himself getting restless under the quiet observation of Mr.
Bunce's eye, yet Mr.Bunce had no suspicions of him whatever.

Mr.Bunce merely watched him "professionally," and with the kindest intention.