A good read for older kids
My daughter was interested in this, as she loves all things Peter Pan. I read it in an afternoon (older readers will have no problem with it) and as an adult, I thoroughly enjoyed it. However, for younger kids, it is a bit violent. If your kids can tell the difference between fantasy and reality, are not prone to nightmares, and enjoy a good adventure story, they will probably love this one. If they get scared easily, I'd avoid it for a bit... poisonous spiders, sword fights, and a guillotine can leave one a bit frightened.
More mature younger readers will also be fine with it, less mature older readers will need to be left to the parents judgment.