Aaronovitch takes us away from the grimy streets of the Big Smoke in this fifth installment of The Rivers of London series, and transports us to one of the counties where hurricanes hardly ever happen: Herefordshire.

Beverley Brooks makes a welcome return, however, helping PC Grant to cook up a storm (if not a hurricane), and the presence of a likable and competent gay sidekick cop is also a great bonus to the book, particularly as his sexuality is treated so matter-of-factly.

I have to admit to being slightly baffled by the title, which foretells an importance for foxgloves in the story that is never realised. They do make sporadic appearances, but only play what seems to be be a very minor role. That is, however, very easily overlooked.

Aaronovitch deploy his trademark easy style of writing peppered with dry witticisms, that makes the series, with its customary shambolic plots, such a pleasure to dip into. Once again, I can't help wondering why Netflix has not yet pounced to turn this into a TV series, considering how many of its boxes it seems to tick (the diversity of the cast being but one of them).