The quest requires to kill 4 of the bosses you summon using time lost scrolls that drop from the Skettis birds that appear when you drink the elixir of shadows, then you should be able to talks the piles of skulls to summon each of the four bosses using 10 time lost scrolls, the problem in hand is that the skulls aren't interactive and you cant talk to them to summon the bosses, am I missing something?
