Meh. It was alright, but I have no desire to continue the series.
It contains one of my YA pet peeves, which is when a character risks dire consequences (e.g. death or dismemberment) merely for the sake of mild curiosity or an unfounded hunch.
Maybe Alex just doesn't really care about death at all, considering he was pretty emotionless when told his uncle/father-figure had died.
I also think it was unrealistic that Alex was able to point a gun in the direction of the prime minister and not get shot by a guard. I don't believe Mrs. Jones' command would have been quick enough. That critique might be a bit nitpicky, though.