Another satisfying entry in the CHERUB series that brings supporting character Dana to the forefront and introduces Rat, who really interested me. Although it is advertised as a cult story, the beginning has a significant (and admittedly cool) reconnaisance side-mission for information, and the following cult section is sandwiched by an explosive finale that again lifted the sloggish sections. I appreciate how Muchamore seems to be writing the books in an unpredictable fashion, with each story's structure being different than previous ones in order to keep a sense of surprise. Also, he tracks side and background characters well, providing great moments of payoff for series readers.