The battle for the treasure in Futabas palace is on! The final monster standing in the Phantom Thieves path is none other than the manifestation of Futabas guilt for her own mothers death, and it fights tooth and claw to stop them from saving her. Things take a strange turn as Futaba appears in her own palace-something that shouldnt even be possible! The truth behind her mothers death is unraveled as the shackles guarding her memories loosen and the distortions weaken. But that truth only leads to even more mysteries... For older teen audiences.