He went in with an interrogative look.

"Oh, my chest!" said Mrs. Leadbatter, patting it. "It's no use my denyin' of it, sir, I'm done up. It's as much as I can do to crawl up to the top to bed. I'm thinkin' I shall have to make up a bed in the kitchen. It only shows 'ow right I was to send for my Rosie, though quite the lady, and where will you find a nattier nursemaid in all Bayswater?"

"Nowhere," assented Lancelot, automatically.

"Oh, I didn't know you'd noticed her running in to see 'er pore old mother of a Sunday arternoon," said Mrs. Leadbatter, highly gratified. "Well, sir, I won't say anything about the hextry gas, though a poor widder and sevenpence hextry on the thousand, but I'm thinkin' if you would give my Rosie a lesson once a week on that there pianner, it would be a kind of set-off, for you know, sir, the policeman tells me your winder is a landmark to 'im on the foggiest nights."

Lancelot flushed, then wrinkled his brows. This was a new idea altogether. Mrs. Leadbatter stood waiting for his reply, with a deferential smile tempered by asthmatic contortions.

"But have you got a piano of your own?"

"Oh, no, sir," cried Mrs. Leadbatter, almost reproachfully.

"Well; but how is your Rosie to practise? One lesson a week is of very little use anyway, but unless she practises a good deal it'll only be a waste of time."

"Ah, you don't know my Rosie," said Mrs. Leadbatter, shaking her head with sceptical pride. "You mustn't judge by other gels—the way that gel picks up things is—well, I'll just tell you what 'er school-teacher, Miss Whiteman said. She says—"

"My good lady," interrupted Lancelot, "I practised six hours a day myself."