Okay guys, since there is no information on this quest as of yet, I figured it out on my own.
INCOMING SPOILERS
1) Visit Cilant Lis and the Egg machine thingy there. It should be interactable.
2) Visit Esternwood, in top left corner there's a large graveyard, it's tagged. Rest there.
3) Visit Caed Nua and go to the middle. That's the "fingers".
Boom. You're welcome.