the difficulty the boys would find in passing Farmersbridge with the tide against them. They had passed High Bridge, and had entered a part of the river with which the boys were not familiar, when Joe Sharpe suddenly called out, "There's a low bridge right ahead that we can't pass." A few more strokes of the oars enabled Harry to see a long low bridge, which completely blocked up the river except at one place, that seemed not much wider than the boat. Through this narrow channel the tide was rushing fiercely, the water heaping itself up in waves that looked unpleasantly high and rough. The boat was rowed as close as possible to the opening under the bridge; but the current was so strong that the boys could not row against it, and even if they had been able to stem it, the channel was too narrow to permit them to use the oars.
Harry ordered the boat to be rowed up to the bridge at a place where there was a quiet eddy, and all the crew went ashore to contrive some way of overcoming the difficulty. Presently Harry thought
