Why do Mr. Oakhurst and the others leave Poker Flat?

Certain inhabitants of Poker Flat feel that the community is going downhill. They have lost a lot of money, and worry that people's morals are sinking. Consequently a secret committee is elected. This committee decides who will be killed and who expatriated. On November 23, 1850 four people are exiled. The group consists of Duchess, a saloon girl, Mother Shipton, a madam, Uncle Billy, a local drunk and thief, and John Oakhurst, a poker player, who won a lot of money from the people sitting on the secret committee. They are instructed not to come back, on pain of death. The four characters get together and leave Poker Flat, heading to the nearby town of Sandy Bar.