This wasn't right. It was -- it was -- it was so wrong it made Zach's head hurt. People didn't walk on top of water, no matter what Christan mythology had to say on the subject. They just didn't. It was physically impossible -- water was not a solid substance, it was -- people couldn't --
"You're doing something very physically impossible," Zach said, faintly, even as he watched Iruka tread on the water. He really wished Iruka would come back to shore.