The #1 bestselling book series celebrates 25 years! In book #1 Jack and Annie travel in the mysterious tree house to the prehistoric past. They have to figure out how to get home. Can they do it before dark...or will they become a dinosaur's dinner? Lexile 510, 80 páginas, Tapa Blanda, 1x13x20 cms, Mary Pope Osborne, 5 a 8 años.