Odais

When Lily, Mitch, Luke, and Kay find a strange golden box with some mysterious contents in one of their backyards, they're launched into an adventure they'll never forget.
They end up in an unknown world called Odais, inhabited and ruled by animals and mythological creatures. For hundreds of years, it and the four other planets in the galaxy of Katrinas have lived together in peace. But now, the citizens face a new threat. A group called the Darkins has arisen in the dark planet of Shiria. Under the command of Kiro, their leader, they have rallied a giant army and plan to conquer the universe, starting with Odais. The only thing standing in their way is the four Guardians, Lily, Mitch, Luke, and Kay. With help from their Odaisan friends, the Four set out to fulfill their destiny foretold by the mysterious prophecy: "Out of the ashes, Four will rise. Evil clashes, good collides. One becomes a victim of evil, by his father, lethal and regal."