On the Hook - Hook and Patch

Hook and Patch are back as Kansas City's reluctant heroes. Hook accidentally discovers a mysterious old safe that has the city buzzing. Does it hold stacks of ill-gotten cash? Is it filled with the secret papers of the Black Hand? Are the guns used in a horrific crime inside? Maybe it contains lists of corrupt officials. Could piles of gold and jewelry be hidden in it? Or maybe it only holds a whole lot of disappointing nothingness. Everyone has a favorite theory of what treasure the "Mystery of History" safe contains. Except Hook and Patch: they don't care.