Yet from the beginning Constance was the winner of every move.

She was on her mettle.

They would not, she determined, find Graeme through her.
Days passed and the detectives still had no sign of the missing man.

It seemed hopeless, but, like all good detectives, Drummond knew from experience that a clue might come to the surface when it was least expected.

Constance on her part never relaxed.
One day it was a young woman dressed in most inconspicuous style who followed close behind her, a woman shadow, one of the shrewdest in the city.
A tenant moved into the apartment across the hall from Constance, and another hired an apartment in the next house, across the court.