"Polly could have sworn the book was called something different when she first bought it. And surely, hadn't one of the stories actually been called 'Fire and Hemlock' too?"
Features cow parsley and the more luxurious type of Obah Cypt.
(Please note that the paperbacks are a photoshop mockup and don't exist- you can't buy them anywhere. You can however read Fire and Hemlock by Diana Wynne Jones instead)