Another Book

If you enjoy the Harry Potter series (and who doesn't?), you might want to check out the Artemis Fowl series by Eoin Colfer. Artemis is a 12 year old genius, who uses his talents for evil instead of good. His family has been wronged and he is out to get revenge at all costs. There is a fair amount of humour also present in these books, so even if you aren't a big fan of fantasy, you might want to check it out.