CHAPTER VII.
THE UNSEEN TERROR 1.
With a little gesture of despair, Quest turned away from the instrument which seemed suddenly to have become so terribly unresponsive, and looked across the vista of square roofs and tangled masses of telephone wires to where the lights of larger New York flared up against the sky.

From his attic chamber, the roar of the City a few blocks away was always in his ears.

He had forgotten in those hours of frenzied solitude to fear for his own safety.

He thought only of Lenora.

Under which one of those thousands of roofs was she being concealed?
What was the reason for this continued silence?
Perhaps they had taken her instrument away--perhaps she was being ill-used.