Mr. Wickham's Widow

Mr. Darcy killed Wickham in a duel at Ramsgate. The next day Elizabeth Wickham appeared with her children looking for the husband who had abandoned them.

Fitzwilliam Darcy knew he had done wrong the instant he saw George Wickham fall dead. He half hoped to die from the gunshot wound he had received in his chest. And then the next day Wickham’s widow appeared at his door with two small children. Darcy had not known he had a wife and children.
Elizabeth came to Ramsgate searching for her absent husband. Instead she found his grave—and the man who killed him. Left with no money and only painful decisions in her future, Elizabeth nursed Darcy’s wounds to give herself a purpose and a distraction from her mixed grief and relief about her husband’s death.
Darcy thought Elizabeth was sharper, more determined, and stronger than any woman he had ever known. But her presence was a constant reminder of the life he took. He was determined to not let her and her children suffer because he had killed the man whose duty had been to take care of them.

A bit over 100,000 words long