Audiobook. One of the better Secret Agent X stories in that he's pitted against a villain who uses his own tricks against. Although, there was the part where the villain did take record of Secret Agent X's real face, which had just happened in the preceding book. Hopefully that ploy doesn't become a theme in the later stories. Otherwise, it was great to see Secret Agent X actually thwarted on a few of his attempts to infiltrate the Legion because he was two steps behind.