Cecilia's grandmother's watch

Tom liked to walk home from school through the small park, especially when the sun was shining and there was the smell of wet earth in the air. This day, however, was different. From the pocket of his school sweatshirt, every now and then he would pull out his grandmother Cecilia's old silver watch, which he had received for his last birthday. The watch was a bit dingy, but the dial shone as if someone had polished it every day. No one in Tom's family knew how it worked, as it was said to have stopped a long time ago. It was always at 3:15 p.m. every day that the hands began to tremble, and an unusual ticking could be heard inside - fast and joyful, as if the watch was glad the hour had arrived. Tom really wanted to know what it meant, so one time he decided to look inside. However, just as he was trying to swing back the lid, he heard a strange rustling in the bushes next to the bench on which he was sitting. A paw slipped out of the bushes - it was white, fluffy and clearly belonged to a cat that Tom had never seen in the area before. The cat was looking at him with penetrating green eyes and its whiskers were moving quickly, as if it was trying to say something. Suddenly, the watch in Tom's hand began to glow with a soft blue light, and the hands began to spin faster and faster. Suddenly the cat spoke: "If you want to know the secret, you have to trust me. Time is running out!" - he said, and his voice resembled the rustling of leaves in the wind. Tom looked around, uncertain whether this was a dream or reality. Should he trust the cat and follow it deeper into the park? And what would happen when the hands of the watch pierced the magic hour?