Top Secret Twenty-One keeps the Stephanie Plum stories chugging along. It’s a pretty decent read, and I enjoyed it over a number of the other Plum novels. Perhaps it’s also because I don’t read them as often as I used to, so I’m able to appreciate them a little bit better compared to when I had one to read every ten books. Even though Stephanie never grows up, it’s fun to have a mass-type entertaining novel to read in between the more serious books. Considering, though, that I’ve aged while Stephanie hasn’t, I wonder if I’ll get to a point where I outgrow this series. Probably not just yet.