Mr. Darcy's Foreboding: A Pride and Prejudice Variation

At the Meryton Assembly early in Jane Austen’s Pride and Prejudice, the proud Fitzwilliam Darcy calls Elizabeth Bennet, everyone else’s belle of the ball, “tolerable”. She hears him, unleashing a prejudice, which takes most of the novel to assuage.
Yet, in Mr. Darcy’s Foreboding, a series of mysterious incidences conspire to create a more rapid repair of their initial relationship. What are these villainous conundrums?
Are the same old nemeses involved: Wickham, Caroline, Mr. Collins, Aunt Catherine, Lydia? If so, which ones, why and when? And what do they perpetrate? Kidnapping? Robbery? Or worse? Perhaps!
By the end of Mr. Darcy’s Foreboding a very prescient Fitzwilliam Darcy solves the enigmas, assisted by our favorites: Elizabeth, Bingley and Colonel Fitzwilliam. Mary, Anne, Georgiana, Kitty and of course Jane join with a bevy of new characters to enhance this soon-to-be classic mystery romance.