I fought with myself on whether to give this book 3 or 4 stars, but it was just too well written and beautiful for 3; let me explain why.
I'll be brutally honest and say that this book just didn't grip me as much as my usual 4 star books do.
If the whole book had been more like the last third, it would be a different story, but it felt slow to build, and just generally a little too mundane for me.
It might be that I'm overly used to fantasy books which throw everything at you at all times, but the real world, everyday-ness of so much of the story just didn't grab my attention enough.
(Mild Spoilers from here on)
I loved every single section that focused on the Yoruba legends. I even enjoyed most of the daily life in Ajao - Iyanla's work as the village's healer and priestess, the politics of the larger city, even the friendship between Simi and Jay (which at first I thought I would hate).
But the story itself, all the way up until Bubu's illness, just felt too slow.
I would have much preferred if Simi entering the Lands of the Quicksand a second time had happened just after the halfway point, and I had been given more time to appreciate the world below, fight against the powers holding it, and the children within. But again, that's likely just a personal choice of pacing.
However!
As I said, I thought this book was beautiful. The writing style was easy to follow, I loved the integration of Yoruba language, and the inclusion of a glossary for possible unfamiliar words at the beginning of the book (which is always a good sign for me - maps, glossaries and pronunciation guides mean I'm in for a good time). I also appreciate that it means a lot to have the everyday of Nigeria - big city, small city, and village living - actually represented! So all of my little fusses about that side being mundane for me are over-ridden by the fact that for others, it will speak to them in ways I can hardly imagine. And as a teacher, that's something I can't ignore.
And even aside from the 'boring everyday' being a bit more difficult to read, I learnt a lot because of it! Using the glossary helped me to learn what these words meant and build up the image in my head of something that is not shown or represented anywhere near enough. Even my mental images are so Europe and America-centric that the Lagos big city in my brain still kept morphing into a New York style landscape, which took effort to keep readjusting each time I caught it. Its telling that imagining the 'dusty african village' was much easier for my brain to recreate...
I love this book for that specifically and for its beautiful descriptive language, which is the main reason it deserve 4 stars rather than 3 from me. No matter whether it was constantly to my personal taste, I enjoyed it, and I can see plenty of children enjoying and benefiting from it.