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- ISBN: 9781743312599 | 1743312598
- Cover: Paperback
- Copyright: 7/1/2015
The second in the series featuring the guinea pig detective and his sleuthing cousin Coco Carlomagno, the well-respected (if somewhat easily startled) Chief of Police, has run into an unusually difficult problem. From his office high in the Obelisco, Buenos Aires' tallest building, he can see a light turn on and off. Could it be a message? How can he possibly decode it? In desperation he once again calls on his clever cousin Alberta to help him solve the puzzle of the looming lamplight.