In this final installment of The Swan Knights Trilogy, Verena and the Sweeter Realm recover from the War with the Deep. Her post-war bliss is cut short when her destiny and the fate of the Holy Grail force her and her loyal subjects back into action. God and the Grail present Verena with more hardship and more sacrifices, but also with more love and friendship as she follows the call of the Grail, away from the Sweeter Realm, to its providential completion and the ultimate fate of mankind.