Magic Tree House Merlin Missions # 1 Christmas in Camelot (Used Paperback) - Mary Pope Osborne

When Jack and Annie receive an invitation to spend Christmas Eve in Camelot-a magical place that exists only in myth and fantasy-they know they are in for their biggest adventure yet. What they don't know is that the invitation will send them on a quest to save Camelot. Can they succeed even though Camelot's greatest knights have failed?

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