When Mr. Dearly marries Mrs. Dearly (her maiden name is not given) they move into a house together with their dogs and the nannies they grew up with.
"Nanny Cook and Nanny Butler met and, after a few minutes of deep suspicion, took a great liking to each other. And they had a good laugh about their names.
"'What a pity we're not a real cook and butler,' said Nanny Cook.
"'Yes, that's what's needed now,' said Nanny Butler.
"And then they both together had the Great Idea: Nanny Cook would train to be a real cook, and Nanny Butler would train to be a real butler. They would start the very next day and be fully trained by the wedding.
"'But you'll have to be a parlourmaid, really,' said Nanny Cook.
"'Certainly not,' said Nanny Butler. 'I haven't the figure for it. I shall be a real butler -- and I shall valet Mr. Dearly, which will need no training as I've done it since the day he was born.'
"And so when the Dearlys and the Pongos [the dalmatians] got back from their joint honeymoon, there were Nanny Cook and Nanny Butler, fully trained, ready to welcome them into the little house facing Regent's Park.
"It came as something of a shock that Nanny Butler was wearing trousers.
"'Wouldn't a black dress with a nice frilly apron be better?' suggested Mrs. Dearly -- rather nervously, because Nanny Butler had never been her Nanny.
"'You can't be a butler without trousers,' said Nanny Butler firmly. 'But I'll get a frilly apron tomorrow. It will add a note of originality.'"
The first illustration of the book shows Mr & Mrs Dearly walking arm in arm, followed by the two dalmatian dogs with Nanny Butler & Nanny Cook bringing up the rear, Nanny Butler in her jacket with tails, striped trousers, and a frilly apron, her hair pulled into a bun, Nanny Cook in a dress, round glasses on her face which she turns to Nanny Butler. The chapter title, which seems to act as caption to the drawing: "THE HAPPY COUPLES"