The Last Book of Swords : Shieldbreaker's Story

Vilkata, the Dark King, returns from exile seeking revenge. His goal: the Tasavalta vault where Prince Mark has stored the remaining Swords. With possession of Shieldbreaker, Vilkata aims to destroy all other Swords and to rule the world and perhaps beyond. Only Mark’s young son Stephen is on hand to oppose the Dark King. He must get word to his father and grandfather. 

Swords clash and are destroyed. Only one Sword will survive.