Valley of the Kings The Valley of the Kings is a place in Ancient Egypt where all past Pharaohs have been laid to rest . It is an important location in the Yu - Gi - Oh ! manga , second series anime storylines and the video game " Yu - Gi - Oh ! Forbidden Memories " . History . Ancient Egypt . Many pharaohs were buried here along with their treasure . After Aknamkanon learned of how the Millennium Items were created , he fell into a depression which led to his death . Subsequently , he was buried here . While Aknamkanon ' s son Atem ruled as pharaoh , Thief Bakura raided the tomb of Aknamkanon , stealing its treasures and dragged Aknamkanon ' s corpse to the temple . Atem defeated Zorc Necrophades , sacrificing his life in the process . A portion of Atem ' s soul was sealed in the Millennium Puzzle , which was laid to rest along with Atem in his tomb in the valley , which later became known as the Tomb of the Nameless Pharaoh . Solomon Muto ' s expedition ( 1960 ) . During his younger years , Solomon Muto visited the Valley of the Kings and found the Millennium Puzzle in the " Tomb of the Nameless Pharaoh " , which was actually the tomb of Pharaoh Atem . Later on , the Solomon give the Puzzle to his grandson Yugi Muto . At the time of Solomon ' s visit in the 1960s , over 60 ancient tombs had been discovered in this valley , but no one had dared enter the inner chambers of Pharaoh Atem ' s tomb . The one person that did and survived , was a villager known by Solomon ' s guides . He was driven mad and repeated the same phrase over and over : " The Shadow Game " ( Game of Darkness , " Yami No Game " in Japanese ) . Yoshimori and Kanekura ' s expedition ( 1990s ) . The archaeologist , Yoshimori , was part of an exhibition sponsored by the museum curator , Kanekura . They found a tomb from the New Kingdom Era ( 1580 - 1314 BC ) . The treasures and mummy were taken and put on display in the museum . However Kanekura allegedly stole treasures which he sold for his own profit . Shadi , a guardian of the valley , sought to punish Kanekura and Yoshimori for defiling the territory of the Gods . He traveled to Japan , where he performed a Weighing of the Heart Shadow Game on Kanekura , killing him in the process . Shadi also intended to kill Yoshimori , but used him to lure Dark Yugi into a game to test him . Locations . The Tomb of the Nameless Pharaoh . Before reaching the end of Pharaoh Atem ' s Tomb and the Millennium Puzzle , Solomon Muto and his guides had to go through a variety of trapped rooms as the ancient treasure was well defended . Each room was treated like a " game " , with the ultimate sacrifice awaiting those who lost : death . The Tomb of King Aknamkanon . It is fair to assume that as all other Pharaohs , King Aknamkanon also had a tomb in the Valley of the Kings waiting for him when he died . The tomb was then raided by Thief King Bakura during the Dawn of the Duel story arc . Before he stormed the Royal Palace to confront Pharaoh Atem , Bakura stole several treasures from King Aknamkanon ' s tomb , including Aknamkanon ' s sarcophagus and his DiaDhank . The DiaDhank then permitted Bakura to Summon any monster from Aknamkanon ' s " Monster Shrine " . Yu - Gi - Oh ! Forbidden Memories . In the " Yu - Gi - Oh ! Forbidden Memories " , the Valley of the Kings is a valley located outside the metropolis . The Valley contains tombs , including that of Prince Atem ' s parents , the King and Queen . The Forbidden Ruins . The Forbidden Ruins are hidden within the Valley . Sadin is a tombkeeper at the Valley . He is even unable to find the Forbidden Ruins , until Atem gives him a map .