Sir Walter Scott's the Heart of Midlothian

If a sister asks a sister's life on her bended knees, they will pardon her; and they will win a thousand hearts by it.
Edinburgh, 1736: Captain John Porteous is charged with murder and locked up in Edinburgh's Tolbooth prison, also known as the Heart of Midlothian. When news comes that he has been pardoned, a baying mob breaks into the jail, liberating its inmates and bringing Porteous to their own form of justice.
But one prisoner, Effie Deans, chooses not to take the opportunity to flee. Wrongly convicted of murder, Effie has been sentenced to death. Jeanie, her older sister, sets about walking to London to beg for her pardon from the queen.
A gripping tale of religious piety and filial devotion, this new edition of The Heart of Midlothian has been expertly reworked for modern readers by David Purdie.