I enjoyed this storyline a lot, though I also have some reservations that prevent me from rating it higher. I'm applying the same standards I usually do when I review a book I've purchased or borrowed. However, please keep in mind as you read this that it IS an unpublished work, and a very, very good one at that.
The plot is unique and nicely developed. Lydia was not discovered until after Wickham abandoned her and she was pregnant, leaving her family in disgrace. Elizabeth Bennet has gotten work as a governess and loves her young charges dearly. Unfortunately, her employer attempts to seduce her and, when she resists, becomes violent. Elizabeth runs from the house, injured, into the cold without her coat or any of her belongings. Fortunately, Mr. Bingley happens upon her and, knowing he cannot bring her to his own townhouse with Caroline there, he takes her to Mr. Darcy's home. Naturally, this involves a lot of secrecy and subterfuge so as not to compromise Elizabeth's reputation. Then there's Darcy's fury over Elizabeth's injuries and need to confront her assaulter despite her desire to let the matter go in order to protect his children.
The other storyline becomes a bit of a love triangle, as Colonel Fitzwilliam becomes interested in Jane Bennet, and Caroline humiliates Jane in company in an attempt to discourage Charles from attaching himself to her. So, who's going to get the girl in the end?
There are two highly unlikely coincidences, both involving Bingley being in the right place at the right time to encounter a Bennet sister. That's certainly not unusual in fiction, though, and the plot is excellent overall. Characters are distinctly drawn. The writing is quite good in general, but it shares a common flaw that many unpublished stories I've read share (as well as many published stories, unfortunately). I wonder if it's the nature of posting installments over time that leads to so much redundancy, perhaps to remind readers what happened previously. There's also over-explanation of events and characters' thoughts. The author just doesn't trust the reader to retain critical information or to draw obvious conclusions based on characters' behavior. It certainly goes to prove the value of having a good editor!