I didn’t set out to create a series with a sleuthing couple. But Lizzie Stuart, my crime historian protagonist, found John Quinn, Philadelphia homicide detective, intriguing when they met in Cornwall England in Death’s Favorite Child. In A Dead Man’s Honor, when Quinn astonishes her by applying for a position at the Virginia university where she is going to spend a year doing research, she is both dismayed and even more attracted. This relationship between my amateur sleuth and a police officer is common in mystery novels. There are even series – at least three or four — with a male amateur sleuth who is involved with a female cop. The reason for these pairings is often convenience. If the amateur sleuth has a relationship with a police investigator – whether romance or friendship – the sleuth can then: gain access to crime scenes gain access to autopsy and crime lab reports find out what witnesses and various suspects claim have a man (or woman) with a gun handy when one is needed The relationship also introduces on-going tension between two primary characters because the amateur sleuth – prone to getting into situations involving murder and other crimes – has…