The Water Door

Jeremy and Joshua, ages 11 and 12, are staying at their grandparents' farm when they discover The Water Door--a hydro-portal that transports them to the distant planet, Tetherae. Once there, the brothers embark on an exciting adventure through the Wilds of Tetherae, including a fabulous treehouse, fierce dinosaurs, enormous giants, underground caverns, and mystical castles. Using their new Tetherae abilities, they must find a legendary heirloom diamond to rescue their parents from their evil uncle who has kidnapped them before time runs out.