The lines moved with her. One end of each thread stayed stuck to her chest, while the other end remained attached to a given place along the street. New lines appeared as she walked, and old ones faded, disappearing behind. The lines came in various widths, and some of them were brighter than others.
Curious, Vin tested the lines with her mind, trying to discover their secret. She focused on a particularly small and innocent-looking one, and found that she could feel it individually if she concentrated. She almost felt like she could touch it. She reached out with her mind and gave it a slight tug.
The line shook, and something immediately flew out of the darkness toward her. Vin yelped, trying to jump away, but the object—a rusty nail—shot directly toward her.
Suddenly, something grabbed the nail, ripping it away and throwing it back out into the darkness.
Vin came up from her roll in a tense crouch, mistcloak fluttering around her. She scanned the darkness, then glanced at Kelsier, who was chuckling softly.
“I should have known you’d try that,” he said.
Vin flushed in embarrassment.
“Come on,” he said, waving her over. “No harm done.”
“The nail attacked me!” Did that metal bring objects to life? That would be an incredible power indeed.
“Actually, you kind of attacked yourself,” Kelsier said.
Vin stood carefully, then joined him as he began to walk down the street again.
“I’ll explain what you did in a moment,” he promised. “First, there’s something you have to understand about Allomancy.”
“Another rule?”
“More a philosophy,” Kelsier said. “It has to do with consequences.”
Vin frowned. “What do you mean?”
“Every action we take has consequences, Vin,” Kelsier said. “I’ve found that in both Allomancy and life, the person who can best judge the consequences of their actions will be the most successful. Take burning pewter, for instance. What are its consequences?”
Vin shrugged. “You get stronger.”
“What happens if you’re carrying something heavy when your pewter runs out?”
Vin paused. “I suppose you’d drop it.”
“And, if it’s too heavy, you could hurt yourself seriously. Many a Misting Thug has shrugged off a dire wound while fighting, only to die from that same wound once their pewter ran out.”
“I see,” Vin said quietly.
“Ha!”
Vin jumped in shock, throwing her hands up over her enhanced ears. “Ow!” she complained, glaring at Kelsier.
He smiled. “Burning tin has consequences too. If someone produces a sudden light or sound, you can be blinded or stunned.”
“But, what does that have to do with those last two metals?”
“Iron and steel give you the ability to manipulate other metals around you,” Kelsier explained. “With iron, you can Pull a metal source toward yourself. With steel, you can Push one away. Ah, here we are.”
Kelsier stopped, looking up ahead.
Through the mist, Vin could see the massive city wall looming above them. “What are we doing here?”
“We’re going to practice Ironpulling and Steelpushing,” Kelsier said. “But first, some basics.” He pulled something out of his belt—a clip, the smallest denomination of coin. He held it up before her, standing to the side. “Burn steel, the opposite of the metal you burned a few moments ago.”
Vin nodded. Again, the blue lines sprang up around her. One of them pointed directly at the coin in Kelsier’s hand.
“All right,” Kelsier said. “Push on it.”
Vin reached toward the proper thread and Pushed slightly. The coin flipped out of Kelsier’s fingers, traveling directly away from Vin. She continued to focus on it, Pushing the coin through the air until it snapped against the wall of a nearby house.
Vin was thrown violently backward in a sudden, jerking motion. Kelsier caught her and kept her from falling to the ground.
Vin stumbled and righted herself. Across the street, the coin—now released from her control—plinked to the ground.
“What happened?” Kelsier asked her.
She shook her head. “I don’t know. I Pushed on the coin, and it flew away. But when it hit the wall, I was pushed away.”
“Why?”
Vin frowned thoughtfully. “I guess . . . I guess the coin couldn’t go anywhere, so I had to be the one that moved.”
Kelsier nodded approvingly. “Consequences, Vin. You use your own weight when you Steelpush. If you’re a lot heavier than your anchor, it will fly away from you like that coin did. However, if the object is heavier than you are—or if it runs into something that is—you’ll be Pushed away. Ironpulling is similar—either you’ll be Pulled toward the object or it will be Pulled toward you. If your weights are similar, then you’ll both move.
“This is the great art of Allomancy, Vin. Knowing how much, or how little, you will move when you burn steel or iron will give you a major advantage over your opponents. You’ll find that these two are the most versatile and useful of your abilities.”
Vin nodded.
“Now, remember,” he continued. “In both cases, the force of your Push or Pull is directly away from or toward you. You can’t flip things around with your mind, controlling them to go wherever you want. That’s not the way that Allomancy works, because that’s not the way the physical world works. When you push against something—whether with Allomancy or with your hands—it goes directly in the opposite direction. Force, reactions, consequences. Understand?”
Vin nodded again.
“Good,” Kelsier said happily. “Now, let’s go jump over that wall.”
“What?”
He left her standing dumbfounded in the street. She watched him approach the base of the wall, then scurried over to him.
“You’re insane!” she said quietly.
Kelsier smiled. “I think that’s the second time today you’ve said that to me. You need to pay better attention—if you’d been listening to everyone else, you’d know that my sanity departed long ago.”
“Kelsier,” she said, looking up at the wall. “I can’t. . . . I mean, I’ve never really even used Allomancy before this evening!”
“Yes, but you’re such a quick learner,” Kelsier said, pulling something out from beneath his cloak. It appeared to be a belt. “Here, put this on. It’s got metal weights strapped to it. If something goes wrong, I’ll probably be able to catch you.”
“Probably?” Vin asked nervously, strapping on the belt.
Kelsier smiled, then dropped a large metal ingot at his feet. “Put the ingot directly below you, and remember to Steelpush, not Ironpull. Don’t stop Pushing until you reach the top of the wall.”
Then he bent down and jumped.
Kelsier shot into the air, his dark form vanishing into the curling mists. Vin waited for a moment, but he didn’t plummet back down to his doom.
All was still, even to her enhanced ears. The mists whirled playfully around her. Taunting her. Daring her.
She glanced down at the ingot, burning steel. The blue line glowed with a faint, ghostly light. She stepped over to the ingot, standing with one foot on either side of it. She glanced up at the mists, then down one last time.