All Flash. No Substance. I guess a beach and pina coladas would make it satisfying. Ignatius seems to have overdosed on plot-by-the-numbers and to have had no time for the details of either his characters or his plot development. Warning: there will be spoilers, I guess.
Sophie could have been a good character. Most of the others had no such chance, but nearly all of them ended up doing & saying ridiculous, stupid, out-of character things:
1. Sophie says "I can't imagine how his cover could have been blown." after her first idea is proven wrong. She lacks even enough imagination to see that there are 99 ways a spy's cover could be blown in a foreign country where he sticks out like a sore thumb. But no, she assumes the last person the spy met HAD TO BE the one who did it. He HAD to. And, when she decided he wasn't, she was flat out of ideas. Laughable.
2. The ex-I-Banker, now Chief of Staff for the PotUS is nothing but a loud-mouth. He is an empty suit who shows zero financial sophistication. He has one of the dumbest lines I have ever read. When Gertz tells him he is closing up shop, the ex-I-Banker says, "But you told me this was self-funding and self-liquidating." And, of course, Gertz replies "Yes, it is, and now we're self-liquidating." That was obvious to me, but somehow it went right over the head of this master-of-the-universe ex-I-Banker. Laughable.
3. Sabah in Brussels. After they've proven to Sabah that they have enough evidence to jail him for a long time, he agrees to help them. But then, they slap him and don't pet his dog, so he supposedly changes his mind and says something like "You nasty people. I refuse to help you." Sure. He's just going to get thrown into jail for decades because someone wasn't nice to his dog.
In addition to specific paragraphs where characters say ridiculous things, there are many parts of the story that are nothing more than an excuse to show off knowledge of some locale or piece of society. But, they are pointless either by being silly or because we know the entire sub-plot will come to not anyway.
The entire episode of Perkins' arrest was a bore. Anyone with any intelligence knew it was just going to go away. And it did. Net result: lots of wasted words. Let us count how ridiculous it was:
1. Sophie knows who A. Cronin is. Perkins knows she knows. He never mentions it. Yes, he supposedly never mentions it to protect her. But, we know she knows. We know it kills the case. We know this is all nonsense. Many pages of nonsense.
2. "Follow the money." Wouldn't there be, oh, I don't know, maybe $6 BILLION missing. Perkins never pushed that. In such cases, the M. O. would be to "follow the money". But here? $6 BILLION missing. Perkins doesn't mention it. Nobody else cares. Perkins mentions that there was a second account. But, he NEVER MENTIONS that any accountant will be able to figure out that there is $6 BILLION missing. Gee, do you think maybe a lawyer could make a case out of that?
3. He never pushes the fact that Egan, one of his "employees", was just killed in Pakistan. We were never given any reason to believe this "employee" had the experience or training to actually work at a high-powered hedge fund. But there he was. And, then there he was in Pakistan. And then there he was ... dead. Gee, do you think maybe a lawyer could make a case out of that being connected to the CIA.
The entire episode in Brussels was just kind of silly. The dog. The interrogation. The IYAAYAS. The moving "safe houses". And it was way too long. And the whole point was ... to get an email address. And to describe the dog, of course. One of the main take-aways from this novel: that guy sure loved his dog.
Sophie's entire first trip to London was silly. She was sent to London to do "Detective Work", to be the detective who figures out how Egan's cover was blown. She goes to London. She romances the boss. She plays faux hedge fund analyst. She does zero detective work in multiple chapters. Laughable.
One other thing; I understand Ignatius' desire to treat Pakistan with respect, but five to eight times he throws us off-course into contemplation of the Pashtuns as your typical "Wise, Noble Savages". Not only was it silly, but a few of them contradicted each other.
The "conclusion" isn't much of one at all. It is just an attempt to have the first meaningful twist in the novel. "Wait, you mean MY source is really YOUR source and maybe HIS source? Gee!" It fell flat. It was like a bullet to the head of a wounded, dying book.