"As promised, I will now hand over the ancient cultivation technique to you." the Abbot said, as he got to his feet. "Follow me."
The Abbot led them to the back room, behind the tree. Its door was covered by the tree's massive trunk, which was the reason why Emery's group had just realized there was a room there.
After entering the room they noticed yet another door. The Abbot opened it and they saw what seemed to be stairs leading to a tunnel. Emery was sure they led quite a bit down at the basement of the temple and, as the temple was built on a hill, the place they were currently at must be inside the hill.
Walking through the tunnel, the group eventually arrived at a room that seemed larger than the scale of the temple outside - a massive hall. Estimating how long they had walked earlier, Emery assumed this place was situated exactly beneath the temple.