This is your basic 'ultra cool, dangerous, spy guy (except he is British so he is perfectly mannered and spoken) saves the world from evil bad guy' novel. Now typically, these are right up my ally. This one, however, asks you to suspend the old disbelief a tad too much.
While our hero is a little annoying (he is Lord Hawke, after all, how could he not be a bit of a d-bag?), the true problem is our villain. This dude is so good, he carries off unbelievably heinous crimes over a 30 year period and they have no idea who he is. Some are ridiculously complicated, some so simple as to be moronic. Hell, dude apparently could have killed every man, woman, and child in the British Empire without getting caught had he been so inclined. Then, our hero gets him in the end so easily you wonder what took him so damn long.
Basically, this book was o.k. Read it, don't read it, I don't really care.....
Nats