Solution

When Douglas grew up, he took the help of an instructor to learn to swim. His training went on from October to April. For three months he was taken across the pool with the help of a rope. As he went under, terror filled him and his legs froze. The instructor taught him to exhale underwater and inhale through the raised nose. He made him kick his legs to make them relax. Then he asked him to swim. He continued swimming from April to July. Still, all terror had not left. He swam two miles across Lake Wentworth and the whole length to the shore and back of Warm Lake. Then he overcame his fear of water.