When the body of a murdered man washes up on shore near a popular beach town, it isn't the cause of death that catches the attention of Detective Lincoln Munroe, it's something the victim had in his pocket: a British gold coin dated 1798. In Lincoln's mind, there is only one possible source: a barrel of gold lost to the waters of Lake Erie during the War of 1812.Based around a true tale of sunken treasure, 'The Purest Treasure' is the second installment in 'The Homicide Files', a series of novellas featuring Detective Lincoln Munroe.