A delightfully funny detective story for 6 to 8 year olds and a new kind of puzzle book from a bestselling duo working together for the first time.
Buenos Aires' Chief of Police, Coco Carlomagno, is sure his office high in the Obelisco is haunted. Every day at the same time he sees a floating pineapple and every day he hears a terrible noise. What could it mean? Who could it be? There's only one guinea pig Coco can turn to to help him in his hour of need: his logic-loving cousin Alberta. Can Alberta help him unravel the mysteries of the perplexing pineapple?