She made up her mind to quit when her losses reached a certain nominal point.

But they did not reach it.

Perhaps the gamblers were too clever.

But Constance seemed always to keep just a little bit ahead of the game.
One person in particular in the group interested her as she endeavored intuitively to take their measure.

It was Haddon Halsey, immaculately garbed, with all those little touches of smartness which women like to see.
Once she caught Halsey looking intently at her.