If she never, ever, sold another book, she'd still not exactly be rooting down the back of the sofa to feed the gas meter, would she?
Anyway, I bought the entire HP set on Kindle (had the books in hardback but passed them on years ago once my dc outgrew them). Had a lovely week curled up with the cat & a brew binge reading them.
Might give the Cormoran Strike ones a go - not my usual sort of thing, but I keep hearing that they're great.