Having read several of these with my child, I was surprised that this book seems entirely inconsistent with the others. Though this is labelled as being suitable for children as young as seven, the violence, malice and mildly sexual content of this book is entirely inappropriate. In the first chapter an innocent man is shot in the leg with a harpoon for no apparent reason. It goes downhill from there. I'll be looking very closely at the remaining books in the series to check they're appropriate. It's disappointing that the publisher and author haven't been able to impose some sort of consistency across the series.