Montalbano opened the door to step out. But Gallo held him back, putting one hand on his arm. What's in there, Chief? If it's what I think, it's something so horrific that it'll haunt your dreams for the rest of your life. When a crazed elderly man and his sister begin firing bullets from their balcony down onto the Vigata street below, Inspector Montalbano finds himself a reluctant television hero. A few days later, when a letter arrives containing a mysterious riddle, the Inspector becomes drawn into a perplexing treasure hunt set by an anonymous challenger
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