But I'm afraid the staff--Rose Mullet and Lily Steynes and the amorous Bertie Adams--would think it odd, put two and two together, and guess right.

Warren, after all, is such a common name.

And we've got so used to our three helpers, we could hardly turn them off, and take on new people whom perhaps we couldn't trust....

We must think it over....
"Now I must go back to Queen Anne's Mansions and sit a little while with Mummy.

Come and dine with us?
There'll only be us three ...