I bought this for my nine year old having heard it was like "a Nigerian Harry Potter". In fact, in a lot of ways it is — better in parts, arguably. However, when the book arrived I saw it had a serial killer in it, so I thought I'd read it first. So glad I did — book is fab up until about page 80 or so and then suddenly, seemingly out of nowhere, appears a graphic depiction of the murder and mutilation of a young child! The mutilations continue and I decided it was in no way suitable for my son, and also that I couldn't really read it to him and just bowdlerise it as the grusome fates of the children (not the main characters, but still) are integral to the plot. I did finish it — in fact it's something of a page turner — which is why it's a shame it won't be suitable for my child for at least another five years or so. I would definitely recommend it to teens who are used to some of the violence in the likes of the Hunger Games but I think even saying 12+ is pushing it a bit tbh.