Philipp and Anne can't believe their eyes when they discover a hidden tree house in the forest. Excited, they climb up the long rope ladder. What a great view! But suddenly the tree house starts to turn. Faster and faster! Then everything is quiet. But Philipp and Anne are no longer where they were before. They are in the valley of the dinosaurs...
The popular children's book series by bestselling author Mary Pope Osborne! Siblings Anne and Philipp travel through time in the magical tree house...
