Franklin Blake has resolved to leave the house, but he can't leave until Lady Verinder gets back.
In the meantime, he's wandering around the house, feeling sorry for himself and talking to Betteredge about it.
Lady Verinder sends a note to Betteredge, which he reads to Cuff, about Rachel.
It says that Rachel swears that she has never had a private word with Rosanna, and did not speak to her at all the night the diamond was stolen or afterward.
Lady Verinder has also enclosed a very generous check to pay for Cuff's services, and dismisses him. Case closed.
Cuff says that, for that amount of money, he'll consider himself on call – if any new clues come up concerning the Moonstone, they just need to send him a letter and he'll come and take up the case again.
As he leaves, he tells Betteredge to watch out for three things:
First, that Betteredge should expect to hear from the Yollands on Monday, after they get Rosanna's letter.
Second, that he'll hear something more about the three Indians – either in Frizinghall, if Rachel stays there, or in London, if she goes to London.
Third, that Betteredge will hear something about the money-lender and pawn broker in London, Mr. Septimus Luker.
And so Sergeant Cuff leaves, still arguing with the gardener about the proper way to raise roses.