Krypto and Kastel's pack used to be peaceful. Everyone loved the relationship between the Alphas, who always bathed beneath the full moon to brag to each other about how huge their wolves had grown up until the day the Alpha king of Kastel died away and his son Prince Jacob took over. He was infamous for having an insatiable hunger for power, to the point where, the night after his coronation, he launched an attack on the Kingdom of Krypto.
Krypto was completely unprepared for the attack; thus, they were taken off guard. The Alpha King and his Luna were killed, and the prince and some of the people who survived the attack were taken hostage, their ladies were sold into prostitution.
Cullen's attempt to flee that evening resulted in a silver piercing around his waist, rendering him incapable of becoming a parent.
Racked with wrath, Prince Cullen of Krypto vowed to exact retribution.
Thirty-year-old Cullen and the survivors of his slave raid successfully brought down the Kingdom of Kastel fourteen years later. They fled into hiding until they healed. Their brave and aloof prince, who was determined to return to his homeland and capture Kastel as well, oversaw their training day and night.
They had to prepare and train for another five years before they launched another attack on Kastel, during which Prince Jacob was slain and all that belonging to them was taken.
Cullen discovered and pinned Princess Bella, the arrogant princess of Kastel and the daughter of Prince Jacob, as he was going around liberating some of the prisoners who were still in captivity. He had the slave collar he had worn throughout his captivity, and his eyes became a different colour as he regarded her icily.
As he approached her and collared her neck, she bowed her head and his wolf proclaimed, "MINE." Then he lifted her chin and looked into the most gorgeous face he had ever seen, with the greenest eyes he had ever seen, but he never made a facial reaction.
You are both my property and my slave. For all your father has done to me and my people, I will repay you a thousand times over. He spoke it cold, emotionless. All that was seen on his face was utter hate.