"Wait," I said, pulling from Luke's grasp.
He looked at me, his tail flicking in agitation. "What? You're the one saying we have to hurry."
"This place must be enormous. We'll waste too much time," I said, summoning my staff and soulcasting a sixth-circle spell. "Earth Sense!"
A pulse of mana emitted from the tip of my staff, spreading across the entrance hall and passing through the walls. A heartbeat later, another issued forth, and then another. My grip on my staff tightened as information began pouring into my mind, a mental picture of winding corridors, passages, and rooms beginning to take shape. I pushed it further than I had in the library, forcing the artificial sense to the edge of my abilities, penetrating the heart of the mountain.
