(From the publisher):
Why should anyone want to dye a large and amiable mongrel dog black? And why should a mysterious blind stranger play one particular gypsy song on his accordian through every street in Louvigny?
To Gaby and his gang, finding the answers to these questions was a heaven-sent diversion from boredom which provided them with six weeks of intensive sleuthing. But not until they witnessed a heartrending scene in a forgotten street did any of the Ten, with the possible exception of Marion, realize what the real answer to the problem they had set out to solve would be.
Original title: Le Piano à Bretelle
Genre: Fiction→ Children & Young Adult→ Mystery