The Night Mother's Truth (Skyrim fanfic)

Although various works have been written on the subjects of both Morrowind's Morag Tong, and Tamriel's more widespread dark brotherhood, there remains confusion as to precisely when and how these two feared assassins guilds formed. Or, more specifically, when and how the dark brotherhood split from Morag Tong, as the former is widely accepted to have sprung from the latter. (Disclaimer: I do not own Skyrim!)