Magister William is an NPC in Divinity: Original Sin 2 (DOS2)
Narrator — *Standing at the centre of the room you spot a Sourcerer haughtily eyeing a pair of nervous—looking Magisters. They keep their crossbow trained upon her as she's being interrogated by an ofﬁcer.*
Magister William — So you admit it then? You murdered that poor fellow?
Windego - Yes, I did. But of course that was only the beginning...
Narrator — *She turns her head and looks you straight in the eye.*
Windego - There's others here whose lives must end.
Magister William - Gone gods, the woman's mad!
Magister William — You there, Sourcerer! Go and fetch Magister Siwan! We need to do more than collar this maniac: we need to shackle her, hands and feet!
Address the Sourcerer and ask her what she meant by "There's others here whose lives must end."*
- The game Autosaves before you talk to Magister Williams because of the events that happen right afterwards.