Spiderwick is a great children's series and here are some more suggestions you might like in
our children's area:
Artemis Fowl by Eoin Colfer.
When a young evil genius tries to restore his family fortune by
capturing a fairy and demanding a ransom in gold, the fairies fight back
with magic, technology, and a particularly nasty troll.
Suggested for ages 10 - 14
Dealing With Dragons by Patricia C. Wrede.