When a popular series gets to book number five, it's often running out of steam. Foxglove Summer, is more like something en-route to somewhere else. At long last, faithful readers of the series get to find out, via an eye-witness, the basics of what really happened at Ettersberg, and are given enough info to guess what's behind the black door in the Folly. There's also significant and quite tasteful progress concerning PC Grant's "will they -- won't they" relationship with minor river goddess Beverley Brook. But readers hoping for more involvement from Nightingale, or Grant's old oppo Lesley May, will be disappointed to learn the two only feature peripherally, and even then it's by phone. On the plus side there's a really interesting new character in the form of a retired wizard named Hugh Oswald. With him comes Melissa, a potentially good new character, introduced first as his granddaughter, then described as his daughter, before flipping back and forth a couple more times. I presumed this was poor proof-reading and not some fantastically subtle plot device. We also get a late look at something which literally opens up whole new vistas for Grant and company, although this is so close to the end it feels like arriving the edge of a precipice.

For hundreds and hundreds of pages, author Ben Aaronovitch has teased great things, and given tantalising glimpses of what might be, yet ultimately delivered stories that meander more than Beverly Brook on tequila. The problem is that as a main character Peter Grant is lacking charisma. He comes across as a decent fellow who does the right thing, an honest copper, and someone who can manage a few witticisms. But, he's simply left standing whenever one of the author's better supporting cast are in the scene. Hugh Oswald, Lesley May, the Faceless Man, Beverly Brook, and especially Nightingale, are all far more interesting, yet remain underused to such a degree it's almost a criminal offence. Ultimately, this book and much of the series is like reading a Batman comic featuring only Robin. A well written Robin, for sure, but not the main man. I can only hope that Ben Aaronovitch speaks true, when in the afterword he tells his readers 'I promise to do better next time.'