The Secret Adversary

"You have? Where?"

Sir James smiled.

"At the scene of your nocturnal adventures, the Bournemouth nursing
home."

"There? Impossible. I asked."

"No, my dear sir, you asked if anyone of the name of Jane Finn had been
there. Now, if the girl had been placed there it would almost certainly
be under an assumed name."

"Bully for you," cried Julius. "I never thought of that!"

"It was fairly obvious," said the other.