By The Still Waters

“There are two people I can think of who might know anything,” Lavellan said. “Experts - on the Fade, on the history of elvhenan. Unfortunately,” a grimace, “one of them has vanished, and if all the resources of the Inquisition can’t find him, I doubt you can.”
“And the other?” Fenris demanded.
“Something from my own history, for once. Not an Inquisition thing. There is - a criminal,” said Lavellan. “Exiled from the clans. She was the blood mage who murdered Clan Sabrae and its Keeper. Last I heard she was living in Kirkwall. A very dangerous woman - possibly insane, actually - but I met her once at Arlathven, and if anyone could help you -”
“Merrill?”
_
Hawke was left in the Fade. Fenris goes looking for him. He doesn't go alone.