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 get more than they had bargained for when Jack opens a book about dinosaurs and wishes he could see them for real.

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. They 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.

Jack and his little sister, Annie, are playing in the woods, when they find a mysterious tree house full of books. When they're whisked away to ancient Egypt in the tree house, Jack and Annie learn how to read hieroglyphics with the help the ghostly Queen of the Nile. But secret codes aren't the only puzzle they have to solve.

Jack and Annie are in a treasure trove full of trouble! Stuck on a desert island, captured by the evil Captain Bones and his gang and a huge storm at sea. For a while, it looks like they might not get home safely after all. And they discover that their adventures are even more magical than they had first thought.