is a historical novel by Verónica Martínez Amat , published in 2020 . It breathes life into a 12th-century legend surrounding the Order of the Hatchet ( La Orden del Hacha ), a unique female military order founded in 1149 in Tortosa, Spain. Historical Setting and Plot

The story is set shortly after Count conquered Tortosa from the Moors in 1148. While the Count was away fighting in Lleida, the Almoravids returned to lay siege to the city. El juramento de Tortosa: La leyenda de la Orden del Hacha