Dimension W Vol. 6 (manga)

Prince Salva has issued a challenge to the Collectors of the world, and only the strongest participants can survive! It's a "treasure hunt" on Easter Island, a land frozen in time by the worst dimensional disaster in history. Kyouma and Mira are among the few skilled and crazy enough to answer the call, but what awaits them is beyond expectations--even for Salva himself! The game is on, and the mysteries of Dimension W only get deeper...