tracks Molly in arctis tor

"Dresden," Charity said. "This is academic. We either go in or we leave. Now."
I chewed my lip and nodded. Then I dug in my pockets for the tiny vial of blood Charity had provided, and hunted through the rocks until I found a spot clear enough to chalk out a circle. I empowered it and wrought one of my usual tracking spells, keying it to a sensation of warmth against my senses. Cold as it was, I would hardly mind anything that might make me feel a little less freeze-dried.
I broke the circle and released the spell, and immediately felt a tingling warmth on my left cheekbone. I turned to face it, and found myself staring directly at Arctis Tor. I paced fifty or sixty yards to the side, and faced the warmth again, working out a rough triangulation.
"She's alive," I told Charity, "or the spell wouldn't have worked. She's in there. Let's go."


Proven Guilty Chapter 36, Page 296