Priya asked why she had decided to leave the house at that particular moment, and Charlotte said: “Because it was Thursday and on Thursday we go to Mommy’s at five, and I thought if we go to Mommy’s and Delilah is sick then Mommy will get in trouble.”

Priya, who is very good, did not react to that at all.

She said, “Tell me more about that.”

And Charlotte said: “Because before, when Delilah broke her arm at Mommy’s, Daddy said Mommy wasn’t watching her and he wrote it down in a book and he told the lady.”

“What lady?”

“The lady who comes and asks us questions about which house we like.”