Eight-year-old Jack and his little sister, Annie, are playing in the woods
during their summer holiday, when they find a mysterious tree house full of
books. But these are no ordinary books . . . And this is no ordinary tree house
. . .Jack and Annie find themselves on another adventure - this time they're in
medieval England. It's exactly the same as the story book - there's a castle and
a banquet and knights on horseback. But when they find themselves locked in a
dungeon, Jack starts to wonder if they'll ever get home again . . .