A bell down in the Bund struck twice; it was two o'clock. At the sound a dark figure appeared at the window and thrust the shade aside. The distance was not too great for Nattie to distinguish the man as the English merchant.
Drawing himself up the lad shook his fist at the apparition. The action brought his head above the hedge. Something moving on the other side caught his eye, and he dodged back just as a man arose to his feet within easy touch.
Breathless with amazement, Nattie crouched down, and parting the roots of the hedge, peered through. The fellow was cautiously moving toward the house. Something in his walk seemed familiar. Presently he reached a spot where the moon's bright rays fell upon him.
A stifled cry of profound astonishment, not unmingled with terror, came from the lad's lips, and he shrank back as if with the intention of fleeing. He thought better of it, however, and watched with eager eyes. A dozen times the man in the grounds halted and crouched to the earth, but finally he reached the front entrance of the mansion.
A door was opened, and a hand was thrust forth with beckoning fingers. The fellow hastily stepped inside and vanished from view, leaving Nattie a-quiver with excitement. The dislocated shoulder, the pain, the fever, all were forgotten in the importance of the discovery.
"That settles it," he muttered. "I am on the right track as sure as the moon is shining. Now I must enter that house by hook or crook. But who would believe that miracles could happen in this century? If that fellow wasn't——"
He abruptly ceased speaking. The door in the front entrance suddenly opened, and a huge dog was thrust down the stone steps. Nattie knew the animal well. It was a ferocious brute Ralph had imported from England that year.
As a watchdog it bore a well-merited reputation among the natives of thieving propensities. It was dreaded because it thought more of a direct application of sharp teeth than any amount of barking. Its unexpected appearance on the scene altered matters considerably.
"Dog or no dog, I intend to find my way into that house before many minutes," decided the lad. "It is an opportunity I cannot permit to pass."
He drew out his revolver, but shook his head and restored it again to his pocket. A shot would alarm the neighborhood and bring a squad of police upon the scene. The brute must be silenced in some other manner.