What happened to King Arthur?

King Arthur was taken to the Isle of Avalon to be healed, and what happened to him after reaching the island is a mystery. Some say he lies in a cave awaiting the day he is needed again by his country, others say King Arthur he died at Avalon. Apart from the somewhat dubious claim by the monks at Glastonbury to have found King Arthur's grave in the Middle Ages, no real evidence has emerged for an Arthurian grave. King Arthur was taken to the Isle of Avalon to be healed, and what happened to him after reaching the island is a mystery. Some say he lies in a cave awaiting the day he is needed again by his country, others say King Arthur he died at Avalon. Apart from the somewhat dubious claim by the monks at Glastonbury to have found King Arthur's grave in the Middle Ages, no real evidence has emerged for an Arthurian grave.