Case Closed: The Fist of Blue Sapphire

The world 's largest sapphire, "The Fist of Blue Sapphire" was alleged to have been lost at sea near Singapore in the late 19th century. When a local billionaire appears to the public with a plan to retrieve the sapphire, a murder occurs in Marina Bay Sands. At the scene, a bloodied notice card from Kid the Phantom Thief is found.