If you are looking for a new fantasy series to read, you might enjoy Fablehaven (also the name of the first book) by Brandon Mull. This series is about a brother and sister who are sent to stay with their grandparents, only to discover that their grandparents are the caretakers of a magical, secret preserve of all kinds of fantastical creatures.

This series has been enjoyed by several library staff members, and has recommendations printed on the book cover by science fiction great, Orson Scott Card, as well as Obert Skye, author of the Leven Thumps series. I'd say that readers who have enjoyed series like Magyck (Septimus Heap books) by Angie Sage, The Magic Thief series by Sarah Prineas, Island of the Aunts by Eva Ibbotson, and Gregor the Overlander by Suzanne Collins, would also really enjoy Fablehaven.