The third Dead Detective book, Dead for the Show, changes setting from Michigan to Toronto, where Seamus investigates the death of a theater's costume designer.
By this time I was into the groove of writing a series, so I'll comment on the differences between series and stand-alone novels. Readers who like series grow attached to the main characters and wait for new books so they can find out what's happening in their lives (or in Seamus' case, their afterlives). Stand-alones have a different...