Kai and Ty Go To Hawaii

My name is Tyler, but everyone calls me Ty. If you think crazy things never happen, when I am with my cousin Kai... You'd be wrong. During a fun family vacation to Hawaii, Tyler and his cousin Kai meet the Island's greatest magician who tells them about an ancient lava rock field.He forewarns them that although they may be tempted, under no circumstances may they remove a lava rock off the Island, for if they do, they would be cursed with bad luck FOREVER... or at least until the lava rock gets returned back to its home.The boys aren't sure what to believe. They wouldn't steal a lava rock off the Island after being told not to... would they?