It was an easy trick to pull off. Allie wondered how many kids Milos had skinjacked just long enough to empty their pockets into the tunnels. They were all finding their own lunch money. Allie peeled out of the teacher and took over a girl climbing through the starship. She found Milos, and pushed him against the curved tunnel wall with a thud.

“You’re not going to get away with this,” she said.

Milos recognized her right away, and smiled. “Allie!” he said in that little-boy voice. “I thought you had sunk. So good to see you.”

She pushed him against the tunnel wall again. “This isn’t going to happen,” Allie told him. “I won’t let it.”

But Milos lost none of his composure. “You cannot stop it now. Why don’t you sit back and enjoy it. It will be quite a spectacle.”

She would have pounded him through the wall if it wouldn’t hurt that poor boy he had skinjacked.

Meanwhile the adults in the playground were beginning to realize that the sky crane across the street was being very careless with its load. “If it doesn’t change its trajectory,” said the principal, “that load of girders will be right above us. What is the crane operator thinking?”

Allie knew there was no time to lose. She leaped out of the fifth-grade girl and began the most important relay race of her life. She hurled herself to another child, then to a pedestrian on the other side of the fence. She body-surfed her way from fleshie to fleshie, until she was in the construction site, then she paused just long enough to get her bearings. She was a construction worker, and the workers around her were already looking up, wondering why the I-beam load had swung so wide.

Allie turned to leap again, determined to make it up into the crane rising above the tower’s highest floors, but she came face-to-face with Milos in the body of one of the other workers.

“Don’t forget I am better at this than you,” he said, and he grabbed her. “I taught you everything you know!”

Instantly Allie leaped into the worker behind Milos, then to his right, then to his left and back again, creating a pattern of four—moving faster and faster until she was skinjacking all four men. Then she swung at him: identical punches from four different directions, powerful enough to bring Milos to his knees.

“Not everything!” she said in four voices. Then she pulled herself together, and leaped away, leaving Milos reeling from the blows.