How to save Isobel and defeat Marcus in BG3: Last Light Inn fight explained
Learning how to save Isobel and defeat Marcus in Baldur's Gate 3 during the Last Light Inn fight is extremely important to the story of Act 2, as failure can lead to a bunch of questlines ending very early.
Baldur's Gate 3's choice and consequence gameplay stretches across the whole playtime, with some locking you out of certain companions, some defining entire characters for the whole game, and some making some quests unfinishable.
Part of the fun is just rolling with the punches and seeing how your choices affect the game, but sometimes big consequences can stem from events in combat you have little control over, with the fight at the Last Light Inn being the biggest example of this. While you can skip fights in the game, this is not one of them, no matter what side you choose.
So, if you need help with how to save Isobel and defeat Marcus in Baldur's Gate 3, we've got you covered.
SPOILER WARNING Big spoilers for large parts of Act 2 of Baldur's Gate 3.
How to save Isobel in Baldur's Gate 3
Click to enlargeTo save Isobel in Baldur's Gate 3, you'll want to prioritise defending her with buffs and heals, while also solely focusing your damage on Marcus.
Firstly, we recommend making a save just before this fight if you are deadset on defending Isobel in Baldur's Gate 3. It's a tough encounter, and it saves lots of time if you can dive right back into it to try again.
Click to enlargeOnce the combat starts, if you don't get the right rolls for Initiative, Marcus and the Winged Horrors may take Isobel down to 0 HP before you can even take a turn, ending any chance of saving her right away.
Characters like Astarion and Karlach have high Dexterity that gives them a big advantage in the Initiative order, so bring them along for the extra help. You can also wake up Art Cullough in the inn before the fight starts to get Halsin as a companion, causing him to join the fight automatically once it begins.
Click to enlargeOnce the fighting starts, to save Isobel in Baldur's Gate 3, focus any abilities and spells on her that can boost her Armour Class, give her temporary HP, or regain any health she loses.
You should also direct all damage toward Marcus, but the best method we found was to use a Hold Person scroll or spell on him, stopping him from making turns. This gives you enough time to focus on the Winged Horrors and reduce his forces, making the fight much easier once he can begin making turns again.
- You'll also need the Baldur's Gate 3 Thorm Mausoleum puzzle solution for later in Act 2
How to defeat Marcus in Baldur's Gate 3
Click to enlargeDefeating Marcus in Baldur's Gate 3 is a much easier task once you have the right tips to save Isobel, as you can fight him like any normal enemy.
As we said above, using a Hold Person spell on him to take him out of the fight at first and defeat all the Winged Horror enemies will make it much easier when he can make turns again.
After this, just focus all your most high damage abilities and spells on him, and he'll drop in no time, allowing you to save Isobel and the Last Light Inn.
- Make sure you visit the Baldur's Gate 3 Arcane Tower as we've covered how to complete it
What happens if Isobel is taken, or you side with Marcus?
Click to enlargeIf they succeed and Isobel is taken, or you side with Marcus, the majority of the characters at the Last Light Inn will die.
This ends a lot of Act 2 quests early, with many of the Tieflings from the Emerald Grove, Dammon the blacksmith that can help Karlach, and Art Cullagh who helps you obtain Halsin as a companion, turning into zombies that you are forced to kill.
This also means you won't be able to lift the Shadow Curse in the Act 2 region, dooming it to suffer even as you move onto Act 3, and permanently locking Halsin out of being a companion.
If you side with Marcus, Jaheira will also attempt to fight you once you have defeated all the zombies, locking her out of becoming a companion later in the story.
That's all for our explanation of how to save Isobel and defeat Marcus in Baldur's Gate 3, and now you know what it takes to ensure she survives to protect the Last Light Inn.
For more Baldur's Gate 3 guides, stick with GGRecon. Alternatively, check out how to find the Adamantine Forge in Baldur's Gate 3 to get some of the best weapons and armour for Act 2.