"What do you suppose is ahead of us to-night?" asked Hugh in a low tone.

"I wish I knew."

"I hope we aren't going off on a wild goose chase."

"You've been saying right along that we ought to watch Lena," Bob reminded his friend.

"I know that and I think it's a good plan. All I say is that she may fool us in some way if we're not careful."

"How do you suppose Mr. Wernberg's getting along in the hospital?"

"I don't know," said Hugh. "I must say though that I'm more interested in Lena."

"I'd like to see our old friend, the false detective."

"So would I. What do you suppose he is—"

"Ssh," hissed Bob suddenly.