She did not indicate by word or look that her attitude had changed, but she made a secret resolve to have done with the affair altogether.
Often in their conversations the girl had mentioned Arthur Weldon.

She had given Cerise his address and telephone number, and implored her at least to communicate with him and tell him his sweetheart was safe, although unhappy.

This had given the old woman the clever idea on which she finally acted.
By telephoning Mr.Weldon she could give him the information that would lead to his coming for Louise, without anyone knowing who it was that had betrayed the secret.

This method commended itself strongly to her, as it would save her from any trouble or reproach.
Leaving Louise at breakfast on this Tuesday morning Madame Cerise went down to the telephone and was soon in communication with Arthur.

She told him, in a quiet tone, that Miss Louise Merrick was being secluded in a suburban house near East Orange, and described the place so he could easily find it.