The Boys' Life of Mark Twain

It was at the mature age of nine that he found he could endure this no longer. One day when the big packet came down and stopped at Hannibal, he slipped aboard and crept under one of the boats on the upper deck. Then the signal-bells rang, the steamer backed away and swung into midstream; he was really going at last. He crept from beneath the boat and sat looking out over the water and enjoying the scenery. Then it began to rain.