“You do not think I ought to go to the police?”

“No, no. In all probability the young lady is with other relations.”

The doctor was not completely satisfied, but he saw that Sir James was determined to say no more, and realized that to try and extract more information from the famous K.C. would be mere waste of labour. Accordingly, he wished them goodbye, and they left the hotel. For a few minutes they stood by the car talking.

“How maddening,” cried Tuppence. “To think that Julius must have been actually under the same roof with her for a few hours.”

“I was a darned idiot,” muttered Julius gloomily.

“You couldn’t know,” Tuppence consoled him. “Could he?” She appealed to Sir James.

“I should advise you not to worry,” said the latter kindly. “No use crying over spilt milk, you know.”

“The great thing is what to do next,” added Tuppence the practical.

Sir James shrugged his shoulders.

“You might advertise for the nurse who accompanied the girl. That is the only course I can suggest, and I must confess I do not hope for much result. Otherwise there is nothing to be done.”