A misplaced letter, a brass engine plate and an unplanned murder launch Michael Tanner and Mary Whitney into their third adventure. Old Silver takes place on and under the icy waters of Lake Superior, in the hushed halls of corporate America, and in the brawling streets of Chicago at the dawn of the Twentieth Century.

When Mary Whitney finds an engine inspection plate at the bottom of Lake Superior, she traces it to a sunken lake freighter named Amador that may have been carrying a secret cargo from a Chicago family to a company in Duluth, Minnesota. The problem is, the inspection plate Mary found during her swim in the Apostle Islands was not where the freighter supposedly foundered. And when she and Tanner decide to solve that mystery, they become the target of killers who are desperate to keep the secrets of the Amador and her cargo away from the public.

"If you crave excitement, adventure and a murder or two, get on the boat with Carl Brookins. Old Silver takes you places you never thought you'd go!"
-- Don Bruns, author of Jamaica Blue and Barbados Heat