I can always trust these books to be a good time. Only reason this isn't 5 stars is because I genuinely do not understand whyyyy the romance is necessary? And even more so, whyyyy does it have to be between a 16 year old boy and a 100+ year old woman (even if she is stuck in a kid's body??). No thank you. That doesn't strike you as weird that she dated your grandfather and now she's dating you? I'm sorry but that's not okay. 
So overall, really great book, but I just tend to skip over any part that touched on the romance.