The sultry heat before the rainy season shrouded the entire laboratory building in a sticky depression. When Lin Chi, the physics class representative, came out of the teacher's office holding the last stack of homework books, the sky at the end of the corridor was showing a gray-blue lead color, like ink about to overturn. He quickened his pace, and the soles of his sneakers made a slight friction sound on the tiles. When he turned the corner, a figure suddenly appeared from the door of the chemistry laboratory.
