Every time I have visited London, I’ve been struck by how vast it is. When I was there last May, I took a walking tour and was amazed at how the guide took us down odd side streets that I would never even have noticed had I been wandering around on my own.
If you want to drive one of the classic London black cabs, you have to acquire The Knowledge—learning all of the city’s 25,000 streets by memory, and having to pass rigorous oral exams, which involve reciting from memory the fastest route from any given point in town to another.
The idea of a mystery novel centered around The Knowledge struck me as a great idea, and it had been a few years since I’d last read anything by Martha Grimes. But The Knowledge, in which a cab driver witnesses a murder in the book’s opening pages, actually has fairly little to do with taxis or drivers. Much of the action takes place in Kenya, and involves a 10-year-old girl, an orphan who survives by her wits. It’s quite an odd book.
Grimes’ long-running series character Detective Superintendent Richard Jury is on the case of who killed a glamorous couple in front of one of London’s most exclusive clubs, a casino/art gallery. Unbeknownst to Jury, little Patty Haigh has managed to follow the suspect from London to Nairobi. (Yes, this part of the story requires some suspension of disbelief.) Armed with a mobile phone, different-colored wigs and a selection of fake IDs, she’s akin to a 21st-century version of one of Sherlock Holmes’ Baker Street Irregulars. Meanwhile, back in London, Jury is trying to figure out a possible connection between the murders and a rare-gem smuggling scheme.
There are some wryly funny moments in this book, which has a plot that sometimes seems as convoluted as a route from Islington to Isleworth, many of them involving a pub called The Knowledge “that only London’s black cab drivers could patronize… [it] would be otherwise unlocatable: untraceable, unfindable, unmappable.” The Knowledge itself didn’t prove to be a totally satisfying novel, but I’d love to read more about that fictional pub and the cabbies that hang out there.