"Alright boys and girls, time for your next warm-up exercise!" Massa ordered, followed by the emergence of a one-meter wide running track surrounding the field as he snapped his fingers; a strange glow seemed to have illuminated both sides along the running track.
"Breakfast will be served after all of you have completed the twenty laps jog." Massa grinned.
Wang Tong and the other students obeyed silently. As they walked onto the running track, all of them were startled by a sudden increase of the pressure, their backpacks got heavier, and their movements were constrained by a greater gravity force.
"Go!"
