Beggar's Nest

I found this district to be surprisingly easy and it is my favourite of the four. Zombies have occupied this district and it is up to you to put them to rest. And they are so easy! Get exploring. At the inn Shining Serpent) you will be attacked by a band of robbers and they will leave a note which you can take to Fenthink. After you have talked to the good people at the inn, you can now go and complete the main quest. Explore all barricaded homes for information on how to get to the source of the problem. In the middle of the map you will find Aldo and his wife. He is looking for Hector who he sent to get some wagon parts. You can find him in southwest in a building (it's marked on the map as some wagon repairs, can't remember the exact name). Near the entrance to the Great Graveyard lies a body of Marcus. In the Great Graveyard, there is one of the tombs of Never. You can take his possessions to the temple. I don't think I need to write directions to Gulnan because it's obvious where you need to go.

Enemies to beware.
Bloated Giant Spider. In the Warrens of the Damned you will encounter a big nasty spider that will poison you and kill you. Well if you won't die the first time, consider yourself a pro. I died the first time I met this baby. The spider has a knockdown attack and its attacks are also poisonous. It has plenty hit points too. I think the best tactic would be either some kind of protection from poison or ranged attacks. Yes, run around with a bow/crossbow or other ranged weapon and shoot it. It will eventually die. In my opinion spells work best here. This spider is really frustrating but don't worry, this is the only one.

Sword Coast Boy/Zombie Lord. Two words. Ranged attack.

Drawl (I think). This can be either very easy or very hard depending on your class. I was a fighter with 22 AC and he was able to hit me two times. Lost 11 hit points or so, so he just scratched me. Other classes like wizards should have their familiars/henchmen do the dirty work, because he can hit you! Or cast Ghostly Visage and hit him back! You can also try a disarm attack and see how he does without his dire mace +1.

Boss - Gulnan (Yuan-Ti). This boss is actually hard. By hard I mean that Gulnan is surrounded by lots of undead. You can fix this little problem by destroying the altar in the right side of the room. Then go face the Yuan-Ti. She can be very hard. Has two attacks and does a lot of damage with her Firestorm spell. And if you happen to fail a save against Hold Person, you're dead. You can either try ranged attacks or bash her with everything you got before she casts her protection spells. I would recommend that. It's really based on luck. If you succeed to disrupt her spells then you're a winner and if not, well… You can always use the Stone of Recall though…

Anyway, after defeating her, looting the tomb, you take the Gulnan's heart to Aribeth.