"Done. Let me try it to see if it works." Edison got the right point and screwed it on. He finally installed the light bulb and got off the table. He walked slowly to the switch and pressed it. Unexpectedly, the room was still dark and not lit by the new light bulb. "Maybe it's a short circuit." Edison murmured. That’s when he realized that he couldn't fix it today. They needed an electrician, not him. Why didn’t they call an electrician earlier? Edison thought. "That’s too bad. Edison, we thought you could fix it when you came back." Gina said. "Boss, you are too poor, everything at your house is broken." Sophia made fun of Edison. Edison said unhappily, "Alright, stop complaining, isn't it that there is no electric light? No big deal. I have a solution ... I'll fix it for you in a mi