This deceptively simple picture book opens with the image of a young Polish girl caressing the abandoned cats in Warsaw's Krasinksy Square, during the 2nd World War, then quietly unfolds its poignant story of the courageous few who dared help the Jewish population confined within the Ghetto walls. The young girl tells how she and her sister involve the cats in a plan to foil a Gestapo raid - in prose with moving images and refrains that echo the haunting illustrations.