Kaeya and her older sister Miuy live in the hot depths in a Summer Wonderland in Jamaica, but one horrible day took Miuy away. She could be seen through sun reflections off lockets and other shining things. It's for Kaeya to save her a older sister from the sizzling lava she might be in. In the meantime Miuy is stuck, trapped in a secret area under the active volcano. And the door was accidentally locked. Will Miuy make it back to Kaeya?