Neverwinter

This is found in Chapter 4 given from Bruenor Battlehammer in the new Maze Engine campaign.
If like myself you raced across the lava pit to get the achievement or just to beat the 1 minute countdown timer, you quite likely ran past the chest!

You can re-do just Chapter 4 if you've already completed it by talking to Bruenor Battlehammer and accepting Chapter 4 again.

1. After jumping down the giant hole at the beginning of Chapter 4, the next main obstacle is crossing the lava pit. You could just do the 1 minute achievement first which isn't too hard as it's not very far. After doing that, look on the right side platforms in the lava for a chest which will give you an item.
Screenshot of location(next to target in center of screen):
2. The item gives you a quest marker in the Sage shop in Neverwinter; simply go there and turn it in for the achievement!

Demon Archaeologist 5G
Recover and decipher the Cult of the Dragon scroll in the Ancient Dragon's Lair.

This achievement is found in Chapter 4 given from Bruenor Battlehammer in the new Maze Engine campaign. Don't worry if you did this quest you can go back and replay the quest at any time, just talk to Bruenor Battlehammer

After you have the chapter 4 quest and talk to Makos you will have to descend into the old dragons lair. Once inside the old dragons lair you talk to Makos and then jump down the big square hole. (you will not die from this) Now Walk forward till you come to one group of dragons kill them and go forward till you come to the next group of dragons and kill them.

At this point you will be at a camp fire, you must not jump from rock to rock till you get to the ones on the far right, at this point you will see a rock with a chest on it. Open the chest and you will accept a quest to go to the Sage Shop. Now all you have to do is go to Prospector's Enclave and talk to Sage Bradda to decipher the ancient cult of the dragon scroll. After this you will have the Achievement called Demon Archaeologist.

Here is my video to show you were you need to go, the video is in 1080p 60fps.

Demon Archaeologist 5G
Recover and decipher the Cult of the Dragon scroll in the Ancient Dragon's Lair.

Requirements:
Must have Maze Engine DLC Downloaded and Chapter 4: Adventurers of the Lost Artifact unlocked in the campaign (Old Dragons Lair).


You have to proceed through the Maze Engine campaign until you have unlocked/access to Chapter 4: Adventures of the Lost Artifact. Go to Mantol-Derith and talk to Bruenor Battlehammer and accept the quest above for Chapter 4. Follow the sparkles to go speak to Makos who then will task you to descend into the old dragons lair (again, just follow the sparkles).

Once inside you speak to Makos again who is standing in front of a big square pit. After speaking with him jump into the pit then and once you hit the bottom you will hit a checkpoint (camp fire). Walk forward following the only path until you come to another camp fire (just after you fight some smaller dragons). On the right hand side of the stepping stones is where you will find the chest that gives you the quest needed for the Achievement called Demon Archaeologist.

Simply jump over to the chest, open it and accept the quest. After accepting the quest you can either finish the mission or teleport out of the map and head to Prospector's Enclave where you must speak to Sage Bradda to decipher the ancient cult of the dragon scroll. Follow the sparkles/video to her shop in the enclave and speak to her to complete the quest and unlock the Achievement.

If you're like me and missed this the first time around, fear not as you can just go back and speak to Bruenor Battlehammer again to re-do the quest.

If you for what ever reason down vote this guide please leave a comment as to why so I can look into trying to improve it, thanx. Hope this video helped and enjoy :)