Arthur Weldon had been her first and only declared admirer, and no one living had studied his peculiar nature more critically than this observant girl.
Also she knew well her own physical failings.

She realized that her personality was to many repulsive, rather than attractive, and this in spite of her exquisite form, her perfect breeding and many undeniable accomplishments.

Men, as a rule, seldom remained at her side save through politeness, and even seemed to fear her; but never until now had she cared for any man sufficiently to wish to retain or interest him.
There were unsuspected fascinations lying dormant in her nature, and Miss Von Taer calmly reflected that the exercise of these qualities, backed by her native wit and capacity for intrigue, could easily accomplish the object she desired.
Thus she had planned her campaign and carefully dressed herself in anticipation of Arthur's call when his note came canceling the engagement.

After rereading his lame excuse she sat down in a quiet corner and began to think.

The first gun had been fired, the battle was on, and like a wise general she carefully marshaled her forces for combat.
An hour or two later she turned to her telephone book and called up the Merrick establishment.