The Scouring of Caldeum Diablo III Guide
Last update: 11 May 2016
Talk to Leah to begin this new mission. It's also worth mentioning that three merchants from the Caldeum Bazaar have moved to the Hidden Camp in the meantime and they'll remain here for the rest of the act.
Find Asheara in the Caldeum Bazaar
Go to the Caldeum Bazaar and notice that Belial has already begun the attack on the city. Run towards Asheara - she should be standing close to the entrance to the Flooded Causeway.
Lead Caldeum refugees to the Flooded Causeway
Bonus: Caldeum refugees saved
Your job is to evacuate people from the city to the canals. Make sure to use your map, because it'll show where you'll find the refugees that need to be saved. You must approach each civilian for that person to start following you and then escort the refugee to the Flooded Causeway, eliminating monsters encountered along the way. Some of the refugees may be hiding under wagons and in this case you must click on them to force them to come out of hiding. Remember to hurry, because you only have a limited time to save the innocent people. I suggest that you start with the refugees located to your right.
Once you've rescued the first group of refugees go to your left and choose a previously unaccessible passageway. Remember that you shouldn't travel to the sewers too often. It's best to add at least several refugees to the group before returning with them. Try to save as many people as possible.
Enter the City of Caldeum with Leah and Adria
You should still be in the Caldeum Bazaar and you must run towards the palace. Leah will destroy the door, allowing you to head inside.
Go to the Imperial Palace
You've ended up in the City of Caldeum. You know this location quite well, because you've already explored it by travelling in an opposite direction with the emperor. Keep moving towards the Imperial Palace. Well-known monsters are waiting for you here, however you will also have to kill a powerful mage named Kamyr along the way (his spells are blocking the passageway).
Watch out for small rifts, because toxic fumes will be coming out of them. Time your moves so you won't lose health in these places. Expect more enemies to stand in your way. Wait until Leah has destroyed a new door and enter the Imperial Palace.
Kill Belial
Watch a short cut-scene which will inform you that Emperor Hakan II is in fact Belial. Once the battle has started he will be standing in the exact same spot where you've met him as the emperor for the first time. Start attacking the Veiled Sentinels.
Belial will soon use the stairs and join the battle, however this is only a taste of the things to come. The boss has a lot of health points, he's extremely fast, he can send out poisonous projectiles and he occassionaly summons more Veiled Sentinels to aid him. Continue attacking Belial until he's lost enough health points and that's when the main part of the battle will begin.
In this new stage of the battle Belial is even more powerful. He's got a very long health bar, so expect the duel to last at least a few minutes. The boss will use his large limbs to attack areas marked with green circles and that information should help you in avoiding massive injuries.
Belial often turns on his rage mode and this is when he slams his hands into the ground you're standing on and causes explosions inside all of the green circles. This is his most powerful attack which deals incredible amounts of damage, so make sure to act quickly and to position yourself far away from the green circles. Aside from the attack described above Belial also likes to rely on a poisonous breath which covers the entire battlefield, but it's not that deadly. Try regenerating mostly thanks to health spheres and use the potions only if you don't have any other choice.
Obtain the Soul of Belial in the Imperial Palace
As soon as you've defeated the boss you will return to the palace. Among the items left here there's a very important one - Soul of Belial. Take the soul, causing additional characters to appear in the area. Leah will use the recently obtained Black Soulstone to imprison the soul.
Talk to Tyrael at the Hidden Camp
Use a town portal spell to return to the Hidden Camp where you must speak with Tyrael.
Talk to the Caracan Leader to leave Caldeum
It's time to move on and the procedure is the same as in the first act. Talk to the Caravan Leader and confirm that you want to leave this place.