A mystical world filled with magic and mystery in a castle floating on the sea! Teenaged cousins Echo Hernandez and Chettermelon Jones discover a peculiar castle made entirely of amethyst. Entering the structure, they find a fantastic palace with whimsical residents and magical properties. Vines and bushes crawl about performing daily tasks, long-extinct creatures roam the corridors, meandering spirits offer dubious advice, and there's...