Loved it and I love Stuart Gibbs.

The second installation in his Moon Base Alpha series, a space mystery series, kept me guessing. I never could figure out exactly had happened, but when all was revealed in the end it made perfect sense and there were clues earlier on in the novel that tied into the resolution. The characters felt more fleshed out here as well than they did in the first novel of the series.

All in all just as enjoyable as his Spy School series and I look forward to what happens next on Moon Base Alpha.