Sherlock Holmes is busy doing what he does best, solving a case of far-reaching international notoriety. It has landed him at the Port of Liverpool, a bustling hub of commerce both legitimate and illicit. As that chapter closes, ours begins. They head to Lime Street Station, to catch a fast steam locomotive home to London and Baker Street, when violent weather keeps The Great Detective and Watson in  Britain's second city a while longer. Long enough to encounter a monster, discover the Liverpool underworld, and to become embroiled in one of his strangest cases yet.