When a bomb blew a fishing boat out of Lake Michigan, those on board weren’t what they appeared to be … nor were the assassins whom Detective Harlan Holmes now hunts.Disgraced PI Harlan Holmes and his erstwhile, ex-con sidekick Tank return in John Marks’ second Northern Michigan thriller, Scam on the Cove. Thinking he’s washed his hands of his inadvertent ties to the Chicago mob families for good, Harlan has settled into a reliable, if somewhat boring, existence in Traverse City. But when an explosion at an UpNorth marina rocks a normally quiet resort community, Harlan discovers that the mob hasn’t forgotten him at all.