A Little Shadow on the Windowsill

After his wife passed away, Old Lin lived alone in an old apartment. The house was always quiet, with only the ticking of the clock. Old Lin felt like a speck of dust forgotten by the world. Then, on a torrential afternoon, a small, wet, and dirty black cat climbed onto his windowsill. The kitten meowed weakly, its dark eyes full of terror. Old Lin's heart softened, and he opened the window to bring it inside. He gently dried it with a towel and fed it some fish. Old Lin named it 'Momo'. Momo was very attentive. When Old Lin read the newspaper, it would lie quietly by the edge; when Old Lin coughed, it would immediately run over and rub its warm little head against his hand. With Momo's arrival, the once cold and gloomy home gradually came to life, and Old Lin's face regained its smile. Two years later, late one night, Old Lin suddenly felt a sharp pain in his chest and collapsed by his bed, unable to move. Momo became anxious, frantically scratching and biting the door and letting out sharp, desperate cries. The unusual noise woke the neighbors, who called the police. They broke down the door and rushed Old Lin to the hospital, saving his life. On the day of his discharge, as soon as Old Lin opened his front door, Momo leaped into his arms. Old Lin hugged it tightly, his eyes welling up. This once homeless kitten had now become the bravest guardian of his life.