"The kettle on the hob is the friend of the family," she said gaily.

"Here it is all ready for what there is to do.

You go and keep watch for Mr.Crozier," she added to the Young Doctor.

"He won't be gone long, I should think, and we don't want him bursting in on us before I've got that letter safe back into his desk.

If he comes, you keep him busy for a moment.