"Then you knew her family well?"

"Her mother was my sister."

"Your sister!"

"Exactly. You are surprised?"

Mark was dumfounded rather than merely surprised.

"I do not, then, understand some other things," he stammered.

"Please be explicit."

"Father, I have already told you of the detective. You yourself figured out, correctly, as it proves, a connection between his activities and the well-dressed men in the labor camp. You yourself saw the diplomat who was here. I now know why they are watching Miss Atheson. They take her for a runaway grand duchess. They are confident she is the one they have been instructed to watch. Several things have happened within the last forty-eight hours. I am convinced Miss Atheson is in danger; and I don't understand some things I have myself seen, if she is really your niece."

"Will you just continue to trust me, my dear Mark?" asked Father Murray anxiously.

"Certainly, Father."