Or was it a coincidence? Kelsier leaped after Vin, tossing himself carelessly from the building. He didn’t have Allomancy, but he was light, and could fall without getting hurt. He landed softly and sprinted across the springy ground, tailing Vin as best he could, running through buildings, ignoring walls, trying to stay close. She still got ahead of him.

Kelsier … Preservation’s voice whispered at him.

Something thrummed through him, a familiar jolt of power, a warmth within. It reminded him of burning metals. Preservation’s own essence, empowering him.

He ran faster, jumped farther. It wasn’t true Allomancy, but instead was something more raw and primal. It surged through Kelsier, warming his soul, letting him reach Vin—who had stopped in the street before a large building. Soon after he reached her, she took off again down the street, but this time Kelsier managed to keep pace, barely.

And she knew he was there. He could sense it in the way she leaped, trying to shake a tail, or at least catch sight of one. She was good, but this was a game he’d been playing for decades before she was born.

She could sense him. Why? How?

She sped up and he followed, with difficulty. His motions were clumsy; he had Preservation pushing him along, but he didn’t have the finesse of true Allomancy. He couldn’t Push or Pull; he merely jumped, grabbing hold of the shadowed walls of buildings, then throwing himself off in prowling leaps.

Still, he grinned widely. He hadn’t realized how much he had missed training with Vin in the mists, matching himself against another Mistborn, watching his protégé inch toward excellence. She was good now. Fantastic even. Remarkable at judging the force of each Push, at balancing her own weight against her anchors.

This was energy; this was excitement. Almost he forgot the troubles he faced. Almost this was enough. If he could dance the mists with Vin at night, then finding a way to recapture his life in the Physical Realm might not matter so much.

They hit an intersection and turned toward the city’s perimeter. Vin bounded ahead on lines of steel; Kelsier hit the ground, thrumming with Preservation’s power, and prepared to jump.

Something descended around him. A blackness of shredding spikes, of spider-leg scratches in the air, of jet-black mist.

“Well,” Ruin said from all sides. “Well, well. Kelsier? How did I not see you earlier?”

The power suffocated him, pushing him toward the ground. Ahead, a small figure bounded after Vin, created of black mist and pulsing with a similar rhythm to what Kelsier had displayed. A decoy of some sort.

Like he did before, Kelsier thought. Imitating Fuzz to trick Vin. He struggled, frustrated, against his bonds.