No Leakage

There is only one tower in Shuangta Town, and there is half a temple next to the tower. Many years later, looking at the small temple with all the tiles on the roof missing, Bai Wenming will recall that night, which was no different from any other night, when he asked his uncle Bai Shuanghe for advice on a problem that had troubled him for a long time. "Twin Tower Town, Twin Tower Town, why is there only one tower?"