Magic Tree House # 30: Haunted Castle on Hallows Eve

Enhanced descriptions from Syndetics:

Make story time a little spookier with the #1 bestselling chapter book series of all time! Every visit to the magic tree house leads to a time-travel adventure!

Jack and Annie are summoned once again to the fantasy realm of Camelot. There, Merlin the Magician tells them that the Stone of Destiny has been stolen. The answer to its disappearance lies within a haunted castle. With a young magician named Teddy, Jack and Annie take on the challenge in an adventure that takes them to new heights and places they couldn't even imagine!

Formerly numbered as Magic Tree House #30, the title of this book is now Magic Tree House Merlin Mission #2: Haunted Castle on Hallows Eve.

Did you know that the Magic Tree House series has two levels?
MAGIC TREE HOUSE: Perfect for readers 6-9 who are just beginning to read chapter books--includes this boxed set!
MERLIN MISSIONS: More challenging adventures for experienced readers ages 7-10

The Magic Tree House series has been a classroom favorite for over 25 years and is sure to inspire a love of reading--and adventure--in every child who joins Jack and Annie!