The island prison in San Francisco Bay, in use from 1934 to 1963 for men other prisons could not hold. D Block has its own reputation — the isolation cells known as the hole, where prisoners were kept in complete darkness; most of the guards' accounts of screaming come from there, and from cell 14D, where a man is said to have died in a night after shouting that something was in there with him. The bay tribes considered the island a place of bad spirits long before the prison.