When you reach the end of the Gauntlet of Shar, you will meet the Nightsong in Baldur’s Gate 3 and you may have to choose whether you save or kill her before moving ahead. Your choice here will have massive consequences, and I tested out both possibilities so you know the best way forward in your own BG3 story.
Should You Save or Kill the Nightsong in BG3?
The short answer is no, you should absolutely not kill the Nightsong in Baldur’s Gate 3 unless you want some pretty nasty consequences. Before getting into the differences, I can tell you that killing the Nightsong will cut off any chances of romance with Shadowheart, and the Shadow Curse will be worse than ever before. I recommend saving before making a definitive decision because there is no turning back without it.
What Happens if You Save the Nightsong in BG3?
If you kill Balthazar and stop Shadowheart from killing the Nightsong, the “good guys” in Baldur’s Gate 3 will have a massive boon. Ketheric now has an enemy in the reborn Nightsong with full power from Selune. Last Light Inn will also remain standing, and Shadowheart will go down a much lighter path in the story.
In terms of good consequences, this is precisely what you want, and you even get a moon glaive weapon for those of you who didn’t want to lose the Spear of the Night.
What Happens if You Kill the Nightsong in BG3?
When you kill the Nightsong with the Spear of Night on Shadowheart, she will have fulfilled her purpose with Shar and become her champion. She will then be tasked with taking down Ketheric and ushering in a new age of Shar within Baldur’s Gate 3. But that’s not even the bad part.
If Nightsong falls, then the Last Light Inn will lose its barrier. The Shadow Curse will decimate everyone inside, meaning any quests or NPCs from that area will be gone for good. This happened on my save before I knew the consequences, and it became one of the few times I reversed a choice.
To reach this part of the story, you need to complete the Gauntlet of Shar, and I have just the guide for you on how to complete the Soft-Step Trial in Baldur’s Gate 3.