The vanquishers' commander told me about this thing, like i could just stroll out here and pick it up. But, as much as the rosamortis is worth, it doesn't do me any good if i can't get inside the sepulcher of sorrows to retrieve it! Obviously, this sort of thing would be very valuable to someone whose homeland were being invaded by, for example, bear-people. The rosamortis is apparently a handy little thingamajig that can save the life of someone who's been mortally wounded. but i promise to make it worth your while!

You'll have to convince the estherians spirits to unlock the ghost chains and give you access, then get the rosamortis away from that monster. which, while pretty valuable, is also guarded by the biggest undead monstrosity i've ever seen! See this crypt over here? It's called the bone gallery and there's a litle thing in there called the rosamortis. a little 'l scratch my back, you scratch yours' kind of thing. Route the estherian spirits, and enter the bone gallery in the temple steppes. This secondary quest its given by the shady character, in skull hollow, You need to enter in the bone gallery and retrieve the rosamortis.

Torchlight 2 save location