Interstellar Roaming

It is a book for both adult and child readers.
David and Emily receive a gift from God for their extraordinary insights and personal merits. That is a Divine Watch with a Magic Spell, with which they can arrive at any destination and era instantly, they can also change their figures to different sizes.
David and Emily travel to ten stars in a parallel universe with their artifact. They witness and experience ten different worlds in those wonderful stars. Those are the Dinosaur World, the Insect World, the Jungle World, the Water World, the Bird World, the Human World, the Gluttonous World, the Demon World, the Fool World and the Intelligent World.
David and Emily have interesting adventure stories in each star. When they are back at home, they tell their stories to their son Oliver and daughter Sophia, who go on with their adventures with a renewed Divine Watch and Magic Spell to explore more mysteries in the universe.