Tower of Tide

She gives her a shell. "You speak to it and I can hear it from the beach." Haiyin goes to Xiangdao every summer vacation. There was a girl there who taught her to read the tides, eat the porridge she cooked, and write her name in the palm of her hand. They agreed to meet every year. Later Haiyin stopped going. Something happened at home and she was sent to her aunt's house on the main island. On the day of the opening ceremony, she saw Haiyin standing at the door of the auditorium. White school uniform, clean hair, surrounded by crowds. She didn't call her. Haiyin didn't recognize her either. She cut her hair and changed her clothes. She was no longer the girl squatting by the dock with her face covered in sand. They got to know each other again. In the hallways, in the library. Haiyin didn't know that she was the same girl back then. She didn't say anything either. Until one day, Haiyin found a piece of paper in an old nautical atlas in the library - the tide times were crookedly written on it, using the handwriting she had been taught. There is a line of very small words on the back: "See you next year." Thirteen years later, Haiyin returned to Xiangdao to build a lighthouse. The proprietress of the B&B has a daughter named Xiaohai. "Aunt Haiyin, when will you come next time?" "Not necessarily. But I'll do it again." "Then I'll save a room for you." As the ferry drove away, Haiyin took out the shell. It was never thrown away. At the end of the sea, the white tower is still shining. ——They made an appointment, but no one knew whether they would meet again.