A few minutes’ wading brought them to the orifice that served as cellar-drain for St. Stephen Walbrook. Daniel went through first, crawling up it on his belly until rough hands grasped his, and drew him out in one long heave. He could not see very well for a minute, because there was suddenly too much light coming into his eyes. But he could smell the mineral tang of fresh mortar, and he knew from the calluses on those hands that they must have belonged to masons. There was a minute of bother trying to get Saturn up through the drain, which turned to hilarity when he popped loose; then he jumped to his feet and shushed them all furiously, saying that he had heard voices echoing down Walbrook from the Bank, and he thought one of them might be an angry Sir Isaac.