had been wandering the building ever since. They continued to traipse through cells and hallways until one of the carpenters noticed that a certain stretch of wall was warmer than the others. It must be the east wall, with the sun shining on it all morning, he said. At this point, the corridors were so narrow they could walk only single file, so they passed the news from one man to the next until it reached the three captains, who corroborated the information by touching one wall and then the other.
