"My dear sir, of course it's physical. Do you conceive the nerves are not purely physical organs? I can't conceive them as anything but physical organs. Can you?"

Mr. Prohack felt schoolboyish.

"It's you that she's upset about, though. Did you notice she motioned me to give you some of the brandy she was taking? Very sweet of her, was it not?... What are you going to do now?"

"I'm going to fetch my daughter."

"Excellent. But have something before you go. You may not know it, but you have been using up nervous tissue, which has to be replaced."

As he was driving down to Putney in a taxi, Mr. Prohack certainly did feel very tired. But he was not so tired as not to insist on helping the engine of the taxi. He pushed the taxi forward with all his might all the way to Putney. He pushed it till his arms ached, though his hands were in his pockets. The distance to Putney had incomprehensibly stretched to nine hundred and ninety-nine miles.

He found Sissie in the studio giving a private lesson to a middle-aged gentleman who ought, Mr. Prohack considered, to have been thinking of his latter end rather than of dancing. He broke up the lesson very abruptly.

"Your mother has had a motor accident. You must come at once."

Sissie came.

"Then it must have been about here," said she, as the taxi approached Putney Bridge on the return journey.