'A Violent Passion, the Love Story of Robert Louis Stevenson and Fanny Osbourne' (original title The Passionate Kindness) - by Alanna Knight, long out of print, went into e-books in November to coincide with RLS's birthday. So Kindle users please check it out using the link below.
Alanna has had published several books, as well as a play on Stevenson.
She writes historical crime and there is more about her long assocation with RLS on her website:
Happy New Year All.