“He has begun to pawn the jewels. We should get him now.”

“But does this mean that any harm has befallen the Lady Frances?”

Holmes shook his head very gravely.

“Supposing that they have held her prisoner up to now, it is clear that they cannot let her loose without their own destruction. We must prepare for the worst.”

“What can I do?”

“These people do not know you by sight?”

“No.”