Alien in a Bottle
Kathy Mackel does smart structural work here: she gives eighth-grader Sean a grounded human story — glassblowing ambitions, a scholarship on the line, real family stakes — and then drops a miniaturized alien junk dealer into it. The two plots genuinely inform each other rather than competing, and the humor is the kind the Bulletin of the Center for Children's Books rightly called 'fast and funny' without being brainless. Kirkus's comparison to The Time Warp Trio is apt for gauging the tone and audience. The honest caveat is that the setup depends on a fairly convenient coincidence, and the book is on the shorter, lighter end — readers hungry for deep sci-fi world-building will want something denser. For middle-grade readers who like comedy with actual heart, though, this delivers.