“Does he not explain?”

Holmes handed me his brother’s telegram.

“Must see you over Cadogan West. Coming at once.”

Mycroft.

“Must see you over Cadogan West. Coming at once.”

Mycroft.

“Cadogan West? I have heard the name.”

“It recalls nothing to my mind. But that Mycroft should break out in this erratic fashion! A planet might as well leave its orbit. By the way, do you know what Mycroft is?”