Pony Jobs for Jill is the most controversial Jill book by a long way.

Earlier on in the series, Captain Cholly-Sawcutt offered Jill a job when she left school. That's not quite what happens when Jill and Ann do leave school. They're kicking their heels, unsure of what to do next, and fighting off their mothers' attempts to send them off to do something useful. Domestic science, say. Or floristry.

And then Ann finds an advertisement from someone who wants people to help them break and school ponies. It sounds ideal. It's the answer to everything. Or so they think.

If you haven't read it, do, and you'll see just why the book has shocked generations of pony book readers.