According to the North Wales Live website, the last man to be hanged in the prison, nicknamed The Welsh Houdini, haunts his old cell and activates the audio commentary. Another phantom is a guard who it is said was possibly murdered by the inmates and his body secreted somewhere ("never to be seen again" apparently). There are also said to be temperature drops and "eerie sounds" heard too.
Link: North Wales Live
Link: Leader Live
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