The Butcher of Spain — Cora Buhlert

Spain during the Napoleonic Wars: Captain Jonathan Farnsworth of the Rifle Brigade only wanted to meet with some Spanish allies and spend a few stolen hours with Comandante Teresa, rebel leader and the woman he loved. But instead Jonathan stepped into a scene of pure horror, when he found the village burning and its people slaughtered.
Teresa was not among the dead. However, she had been captured by the Napoleon's troops and was now the prisoner of the notorious French colonel known only as El Carnicero, the butcher. And tomorrow, Teresa would be executed on the garrotte as a rebel…

This is a novelette of 7600 words or approx. 24 pages. This story was originally published under the title "El Carnicero".

Warning: There is some fairly graphic violence in this novelette, so sensitive readers should tread carefully.