The Beginning:
Part 2 Of The Prodigal Banderling Quest
Level Restriction: 120+
Weapons: AR Fire/Fire, AR Cold/Cold, Slash, Bludgeon, Shadow Slayer.
Time to complete: About 30-40minutes.

To begin this quest you must speak with Guard Enmio di Cinghalle at coords 59.6S X 87.7W. He is a little bit down from where Guard Winterborn is and is. After speaking with him he will instruct you to head to the Chaos Virindi Cave at coords 58.6S X 81.5W to investigate.

Head down into the cave and prepare to for a fight. Once inside go North West and arrive at a wall. Head south to a wall then west down a ramp. Down the ramp you will start to see devastators. After defeating them continue South West. Go straight at the maze and you will begin to fight virindi and rifts at this point. At the crossroad go north.
Fight the Devastators and Marrionettes and continue south into the large room. Now head to the ramp and go down, defeat the hollow minions in front of you and go around the corner and then North East. Then into a series of caverns, and then down either ramp, it makes no difference which one you choose, as both end up at the same location.

Now go down the two ramps and then go north down another and defeat the mobs you have in front of you. Proceed out the opposite tunnel and clear the marrionette's and then go south down the ramp. At this point it is recommend to rebuff if your buffs are running low. After everyone is ready, go down and get ready to fight a bunch of rifts and hollow minions. One they are defeated proceed East and clear any mobs in your way. Now go North East and then west, then north, and then west, and west once more into the large room. Then you'll go North West into a hallway. Go past the hallway and go up the ramp and go to the North West and then down a ramp. Clear the mobs here and then proceed South East and up another ramp.

You'll now be in a room full of Virindi Quidoxes. Go up the ramp and then down to the South East. Now through the big room and then go to the North East and into The Archive portal..
Start by clearing out all the Virindi's, then go West and follow the halls. Continue straight South East and then North. Now go South East down another ramp. Again clear all the Virindi and other mobs out around this area. There will be a pit below you full of Virindi and other mobs, as well as the main Boss mob The Achivist a level 175 Virindi. The group can safely debuff from above this area before going down. The group can also jump down, as you'll be on a platform above, which the Virindi can not get to. The Archivist will vuln, debuff, and drain, you, but does not seem to be able to cast war magic.

After you defeat him, have everyone loot one of the Virindi Message Shards from his body. Next step is to take them to Zaikhal to get it translated. You will give it to Diyas al-Yat Scholar up by the Virindi and other Translator. He's standing outside of the building on the right side. After it's translated head back to Ayan and give the book to Guard Enmio di Cinghalle at coords 59.6S X 87.7W for your reward.
Rewards:
XP about 10% toward level.
Title of Royal Investigator
You have now finished both parts of the Prodigal Banderling Quest.