Do you remember In Charleston With You, from all the way back in April of 2021? In Chapter Six of that book, the heroine, Genevieve, mentions her childhood friend who moved to St. Louis before the book takes place. That friend’s name was Katherine, and I’m pleased to tell you her story is next. And boy, is it a story. Since the events of In Charleston With You, Katherine has been widowed. Her husband’s dying wish was for her to marry Lawrence Knightley, their best friend, for financial security, et cetera. Where it gets complicated? Lawrence is in love with her. It’s that aching, haunting kind of love you have for someone…