A pine marten that Lemoni finds caught in a fence and Dr. Iannis decides to keep as a pet. Psipsina earns her name because Lemoni told Dr. Iannis that she found "a funny kind of cat"--"Psipsina" is the Greek equivalent of calling a cat "Puss." Though Pelagia initially resents having to grind up mice for Psipsina, they soon become close and Psipsina sleeps with Pelagia at night. She's an active and mischievous pet and climbs the walls; the neighbors resent her because she steals eggs from their chickens. Psipsina is the only individual to recognize Mandras when he returns from fighting for the Greeks--she's only truly friendly to people she knows, which tips Pelagia off to Mandras's identity. Psipsina also becomes extremely friendly with Corelli after a somewhat rocky start in which she bites him. During the German occupation of Cephalonia, a German soldier clubs Psipsina and kills her for being tame.