Much like our cupboards filled with mort fingers, skeletal remains are much easier to come by now that the continent of Tamriel seems to be on the verge of collapse. Whereas before we had to rely on adventuring types visiting crypts and swearing to Arkay that their bone fragments weren't dug up from local graveyards, now our underground storerooms are bulging with skulls, bones, and other remains waiting to be ground up; the Master sometimes jests with his trader friends that he has enough dead to build a bone colossus army.