In the morning...
*Boom!*
A deafening explosion reverberated through Leon's room, causing the walls to tremble slightly.
Simultaneously, billowing black smoke engulfed the space, shrouding the room in darkness.
"Cough! Cough!" Leon gasped as he inhaled the choking black smoke filling his room, then hastily dashed to open the window.
*Whoosh!*
Gradually, the thick smoke billowed out, yielding to the refreshing embrace of the cool morning air.
Meanwhile, near the open window, Leon drew in the morning air in deep, ragged breaths, as if he had just sprinted a marathon.
After a moment of growing ease, Leon released a small sigh.
Gazing at his alchemical furnace, still emitting wisps of black smoke, Leon felt a subtle twitch at the corner of his mouth.