Baldur's Gate 3 Evil Livestream: Session 17

Session 17 of my Baldur's Gate 3 Evil live stream. The party explores the cellar of the Last Light Inn, uncovering hidden chambers, then meets with Marcus, the True Soul who helped them win over Jaheira. What is his reason for being amongst the Harpers? What is his plan?

I stream RPGs live on KICK:
https://kick.com/robbitrpg