She wrote in a formal way, giving her telephone number.

That afternoon, apparently as soon as the letter had been delivered, a call came.

The following morning she was the private secretary of Murray Dodge, sitting unobtrusively before a typewriter desk in a sort of little anteroom that guarded the door to his office.
She took pains to act the part of private secretary and no more.

As appeared natural to the rest of the office force at first she was much with Murray, who made the most elaborate explanations of the detail of the business.
"Do they suspect anything ?" she asked anxiously as soon as they were absolutely alone.
"I think so," he replied.

"They said nothing except that they had not expected me back so soon, I think the 'so soon' was an afterthought.
They didn't expect me back at all.