Baldur’s Gate 3 Act 2 Walkthrough

Act 2 is the darkest stretch of Baldur’s Gate 3. The land is cursed by Shadows, and most of the action converges on Moonrise Towers and the fate of the Nightsong. This walkthrough keeps you on the critical path without missing the best loot.

Entering the Shadow-Cursed Lands

• Cross the bridge (or take the Underdark route from Act 1) into the curse.
• Carry torch light or a source of Moonlantern to avoid Shadow assassins. Get a Moonlantern from the Drider Kar’niss or via the Harpers.
• Rest at Last Light Inn — your safe hub. Meet Isobel, Jaheira, and Dammon here.

Key Locations

1. Last Light Inn: Recruit allies, buy gear, and trigger the Marcus/Isobel fight.
2. Reithwin Town: Clear the Thorm mausoleum and the House of Healing.
3. Moonrise Towers: The main enemy base. Infiltrate or assault.
4. Shadowfell (Nightsong): Accessed via the Towers basement.

The Nightsong Decision

Inside the Shadowfell, Shadowheart is commanded to kill the Nightsong (Aylin). This choice reshapes Shadowheart and lifts or deepens the curse:

• Spare her: Curse weakens, Shadowheart turns to Selûne.
• Kill her: Curse stays, Shadowheart deepens her Sharran faith.

Ketheric Thorm (Boss)

Ketheric fights in three phases: on the rooftop, then below at Mind Flayer Colony, then as a Necromite fused with Myrkul. Focus fire, use Counterspell on his revive, and exploit the glowing pillars in the final phase.

Final Tips

Do Last Light Inn quests before assaulting Moonrise — you lose access after the Isobel fight if she dies. Loot the Adamantine forge remnants and the Blood of Lathander mace in the monastery for top Act 2 gear.