The Spanish Mask — Anne Cleeland

A Spanish postulant is living quietly in her Andalusian convent until suddenly, the various factions from the Napoleonic war descend upon her, believing that she alone knows where the Spanish royal treasure lies hidden. As she attempts to convince the British Commander that she is not the missing royal, she finds she must also convince him that the attraction that crackles between them is forbidden, and for more reasons than one.