New York, Sheed & Ward, 1955. First edition. The first Soeur Angele mystery, and likely the first nun-detective! The Sister is visiting Paris to drum up support & money for her hospital and orphanage. The very first person she approaches is her cousin, a truculent man, the Baron d'Orchais. But he's dead. Can the Sister find the culprit? Near fine in very good dust jacket, that latter showing a small open tear to bottom spine and chipping to extremities. $12.50.