There are a lot of homages to Sherlock Holmes, but King's books are particularly enjoyable and have been well received. 'O Jerusalem', though, lets the series down. To start with, Holmes and Russell are in the Holy Land on some mysterious mission. They don't know what it is: they are at the command of two mysterious Arabs and they follow them in growing confusion, as does the reader. It should be King's chance to show off her knowledge of Palestine just after the Great War, but the descriptions are confused and confusing. When King describes places I've visited, I don't recognise them. Her geography is often vague and sometimes plain wrong. And the details let her down. The woman sitting over the coals of her hearth. Coal? In Palestine? The sound of the feathers as an owl passes overhead: owls which, as any ornithologist will tell you, have evolved a special arrangement of feathers so their prey can't hear them coming.
When we finally get to the real story, the action takes off and we are carried through the implausibilities in fine style, but it's too late. And this is a very modern Holmes: the sleuthing is mere showing off, the villain is unmasked by pantomime heroics and a reasonably high body count.
Not to be recommended, I'm afraid