Once they returned home, Ella immediately called the private investigator. "How is the investigation going along?"

"Ms. Ferguson, we…"

Ella frowned when she heard the other party hesitate. "Don't tell me you found nothing."

"We know where the woman's staying, but the place is under Mr. Carrington's name."

The private investigator sounded troubled. "The woman has gone missing. Our lead has gone cold."

"Missing?"

"Yes, two days ago, we asked one of the cleaning ladies. That woman left a long time ago. She won't be returning."

The private investigator sighed. "It will be like searching a needle in a haystack if we were to try to look for her."

Ella was silent for a long time. "Continue to keep an eye on Otto. I'm guessing that the woman will appear once more. Let me know immediately when that happens."

This time, she would do it quietly without raising any alarm.

…

Over at the border, Yvonne had no idea that Ella was onto her.

She hadn't been in touch with Otto after she had