"The Hall of the Keeper of Secrets? Are you referring to the mysterious space left by the Ancient God, the Secret-Keeping Mentor?"
Shard nodded:
"Yes, of course, I wish to understand. In fact, I've heard that the three great magic academies of the material world hold the entrance to that place. Additionally..."
He retrieved his Roder Card Deck, rummaging through it for "Genesis: Knowledge":
"On the night I defeated The Chosen One, Lakin Prisia, and stripped him of his qualification, some glimmers entered this card. When I checked it after waking up, I distinctly felt that there was... a door."
A similar thing happened in the autumn when Ivan Daknis was slain. This means that once again, Shard possesses a door that can be placed at will. Generally speaking, apart from finding the corresponding entrance, at least three conditions are needed to enter the unique space of an Ancient God—a corresponding spirit rune, an artifact to open the door, and a relevant spell.
