The title is Endless Night and it takes place shortly after the death of Mufasa, during Scar's reign over the Pridelands. So far I have the cover and the first page completed. You can find it on my Child-Of-Hades account:
http://child-of-hades.deviantart.com/art/Endless-Night-Cover-Design-318387979
http://child-of-hades.deviantart.com/art/Endless-Night-Pg-1-318896067