Ty went to his next class, math. He sat in the far back corner, where the teacher didn't bother him as much. His friend Sean sat down in the desk beside him.
Sean was the same age as Ty, but he looked five years older. Sean was an "early bloomer". He started and finished puberty practically entirely over summer vacation three years ago. He had been in grade seven, and that transformed him from just an average guy to the biggest person in his grade. Now, however, everyone else had had a chance to catch up, and he was actually pretty short. Ty decided he needed to be taller again.
First, he made it so that nobody in the class but him and Sean would notice anything. He made Sean a little taller. His pants and shirt both seemed to shorten an inch. He had been reading the assigned novel, and he suddenly looked up, startled by his growth. He didn't realize what had happened. Ty didn't want Sean to figure out what was going on just yet, so Ty thought, "I want him to grow one inch for every five minutes that passes until the end of class." Ty started reading his book too, to pass the time.