"La serpiente sutil" is the fourth historical mystery in Peter Tremayne's Sister Fidelma series, featuring a 7th-century Irish nun and advocate who investigates a grisly murder at an abbey. Set in a backdrop of political intrigue, the novel blends historical detail with a complex, locked-room style investigation that challenges the protagonist's skills.
La serpiente sutil (IV) (Series) : Tremayne, Peter, Soler, Carmen
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