This series is still fun and manages to include tension. The story doesn’t treat kids like they’re stupid and the threat of dangerous is very real; it doesn’t censor the word “kill” or its implications. But, of course, everything is still overall lighthearted.

In this volume, there’s a strong environmental message, and the villain has a believable background. The characters, humor (some particularly funny digs at the slowness or lack of change in government/politics), and the story are charming.