The Hall of Abyss is the latest patch to be implemented in pRO’s Sakray Server and will hit the official servers shortly. This article assumes that you are the leader of a guild in pRO or know how to create one in case you will try the feature in Sakray server. If you are going to Sakray, and do not know your way around, please refer to my previous guide linked below:
https://foxdeleon.wordpress.com/2013/09/18/pro-sakray-re-opened-to-the-public/
The Hall of Abyss is a new guild dungeon with new MVPs which drop very powerful weapons. Those weapons are the so-called Velum weapons. In order for you to begin your quest, you must own at least one castle in any of the four WOE1 realms. Once you own a castle, you have to speak with a representative from the Cat Paw Merchant guild usually stationed in the middle of the map. Shown below are the locations of every representative.
Valkyrie
Greenwood Lake
Britoniah
Luina
Once your guild has occupied a castle, speak with the Cat Paw Merchant Guild representative.
Select your guild. If your guild does not occupy a castle but is allied with that does, you can select that guild so you can contribute to their effort to access the Hall of Abyss.
You have two options. You can invest using zenny or thru certificates awarded by completing missions in Malangdo.
The minimum investment is 10,000 zenny. If you would like to make a contribution other than the ones that can be selected, input another amount.
The maximum investment you can make in pRO Sakray is 200 units or 2 million zenny.
As a token of gratitude for your contribution, you will be rewarded with Thanks Invest tickets.
The investment tickets can be exchanged for cool items in Malangdo. Just look for the ticket machine and make a purchase.
You can purchase element proof potions or elemental converters!
The Hall of Abyss patch also comes with these armors.. You can get the armors (given in random) shown below from the same machine by purchasing the Black Paw jellybag. The live servers may have a different setup so please check any announcements made at the official pRO Facebook page
Credits:
Thanks to GM Vazilos for sharing the information regarding this patch.
IGNs Haemon Martyrdom and Archer Prototype for helping me explore HoA.
Bean of beanroblog.com whom I racked brains with trying to figure out the HoA mechanics.
IGN Moggy V2 for helping me with the investments during the first few weeks.