"It may be the Jap!" he whispered.
Knock--knock--knock--knock! This time the mysterious rapping seemed to come from the upper hall.
"If it is the Jap, I'll get him!" Brooks's voice was tense with resolution.

He hesitated--made for the hall door--tiptoed out into the darkness around the main staircase, leaving Dale alone in the living-room beset by shadowy terrors.
Utter silence succeeded his noiseless departure.

Even the storm lulled for a moment.

Dale stood thinking, wondering, searching desperately for some way to help her lover.
At last a resolution formed in her mind.

She went to the city telephone.
"Hello," she said in a low voice, glancing over her shoulder now and then to make sure she was not overheard.