Gabriel reached out his slightly trembling hands, gently touching Zena's cheeks. It was only after he touched her that he was able to confirm about her being his sister. She wasn't an illusion but a real person.
"How are you... alive?" he asked. "I thought you..."
He looked behind Zena and saw the Holy Priestess of Summoning Avilia also looking at him.
Unlike Zena, Avilia knew about Gabriel separating from Karyk as she noticed the changes in Karyk and asked. Just like Karyk, she had also thought that Gabriel had died.
Unlike Zena, she understood why there were two Karyk. The other was the person she had known for much longer. It was Gabriel, and he was alive. From his words, she also understood that he had thought they were dead.