This is probably the weakest in the series because aspects of it haven't aged well. The depiction of Kenya is okay for the most part, but of course there is a stereotype that it is a country with no industrial development. Osborne did attempt to paint an accurate and positive representation of the Maasai people, but the interaction with Jack and Annie was slightly cringe. Granted, I know that this is an older series, so I don't expect everything to be perfect. It was nice to see our two main characters solve another riddle to get closer to becoming master librarians. I'm going to keep pushing through the series! It's been an enjoyable experience.