"But, Joan!" It was all she could say.

"My dear child, it's perfectly simple. This earl of yours has taken the thing off to his castle, like a brigand. You say you are going down there on Friday for a visit. All you have to do is to take me along with you, and sit back and watch me get busy."

"But, Joan!"

"Where's the difficulty?"

"I don't see how I could take you down very well."

"Why not?"

"Oh, I don't know."

"But what is your objection?"

"Well—don't you see?—if you went down there as a friend of mine and were caught stealing the scarab, there would be just the trouble father wants to avoid—about my engagement, you see, and so on."

It was an aspect of the matter that had escaped Joan. She frowned thoughtfully.