SERENA’S POV
The next morning, the climb took three hours, and the air only got thinner and colder with every step. By the time the trail levelled off, the trees were gone. There was only gray stone, patches of hard ice, and the freezing wind biting at my cheeks.
In front of us, cut straight into the side of the black rock, was a wide mouth. I stopped on the ledge and looked at the dark opening. Cold air drifted out from the stone, smelling like wet dirt and old bones.
"What is this place?" I asked, pulling my coat tighter around my shoulders. "The Hollow," Kyle said, stopping beside me. "It's an old tunnel that cuts through the belly of the mountain. Long ago, our ancestors came here to force their young wolves to the surface."
I looked over at Declan, but he was staring at the mouth
