I read about the various proposals for a Wanderer's Library RPG, whether through chat or forum, and remembered an old project I tried to start awhile back with some friends.
To put it simply, I tried to combine aspects of the tabletop RPGs Call of Cthulhu and Mage: The Awakening, and had all of the mathematical gubbins figured out, but everyone who wanted to play dropped out of the project.
The combined system is interesting as it used the simple and in-depth skill system of Call of Cthulhu and combined it with the improvised spell-casting that was possible within Mage: The Awakening. Although I did not plan it to, it very much could be the perfect system for a Wanderer's Libary themed setting.
I don't have the original file but I think I could put everything back together pretty quickly. If there is any interest, I could get everything ready in roughly a month.