“It doesn’t need cleverness,” snapped the Professor. “It’s routine work. Do you want the whole bundle done? It’s a long business, you know⁠—requires diligent application and close attention, and absolutely no intelligence. I’ve done the one dated ‘Chimneys’ which you said was important. I might as well take the rest back to London and hand ’em over to one of my assistants. I really can’t afford the time myself. I’ve come away now from a real teaser, and I want to get back to it.”

His eyes glistened a little.

“Very well, Professor,” assented Battle. “I’m sorry we’re such small fry. I’ll explain to Mr. Lomax. It’s just this one letter that all the hurry is about. Lord Caterham is expecting you to stay for lunch, I believe.”

“Never have lunch,” said the Professor. “Bad habit, lunch. A banana and a water biscuit is all any sane and healthy man should need in the middle of the day.”