At the portal.
Everyone was gathered there. Except Gideon.
After the war, Gideon had spent a long time, a couple of days straight, just standing before Kione's grave. The news that his close friend and brother-in-arms, Kione, had lost his life in the midst of the battle against the giant monsters had really dealt a great blow to Gideon. Azrael had accompanied him for an entire day but the man eventually decided to leave Gideon alone.
It was Vera who went to him next and fortunately, she was able to make him finally leave the grave and returned to the Great Castle.
All of them had been worried for him as Gideon had not come out from their room since he left the grave. However, Vera had brought him out with her for their last family meal before Evie departed for her homeland.