"The Will of Ashan" - "Heart of Darkness" [2nd campaign, 5th mission]

I don't even remember the order in which I completed the tasks. I replayed it once – the first time, I didn't kill the assassins. Then I found out that they were the killers that the ghost asked me to avenge. I reloaded and took down the guys – I showed respect to the old man. The ghost only grants access to one portal. One leads to a level-up area, another to a bunch of goodies, and the third to the ghost's daughter. I visited all of them after reloading to see what was there. I decided to free the ghost's daughter from prison. I felt really sorry for the girl.

As for when I performed the ritual – I don't remember. I didn't have any problems completing the mission.