It might have been Thalassa's wife.

It might even have been Robert's daughter." "Was not Miss Turold present at the family gathering ?" "No; my brother naturally did not wish her to be present, and she went upstairs.

She went out while we were in the room.

The door was slightly open, and she may have glanced in as she passed." "But this person was listening." Austin Turold shrugged his shoulders.
"Was your brother talking about his marriage at the time ?" "Yes." "Could Miss Turold have heard what he was saying ?" "Anybody could.

The door was partly open." "There is some mystery here." Barrant spoke with the thoughtful air of one viewing a new vista opening in the distance.