UPDATE 11 APRIL: At bottom are the steps necessary to upgrade your Hollow Weapon to a DEADLY hollow weapon.  You cannot make a deadly hollow dagger, katar, or staff. as these racial types are not allowed.

Step 0: Preparation

• Toughest BASE armor you have.  In the dungeon are Lugians armed with hollow weapons, which ignore magical buffs and will DESTROY you if you do not have good non-magical armor.

• Lots of healing kits and stamina elixirs

Step 1: Getting the Ore

  The ore is found in the Lugian Mines, located at 73.9S  39.0E.  The quickest route there is Qalaba'r Settlement Portals - 74.8S, 17.8E, Southern Park - 75.8S, 37.0E, run to Lugian Mines (Low-Grade Chorizite) - 73.9S 39.0E.  As you are working your way down to the ore, pick up a Lugian Pick Axe from one of their corpses.  You will need this.  Once you get down there, you are looking for something that looks like a rectangular boulder.  Double-click on the Axe, then click on the boulder and you will get low quality ore from it.  Do NOT pick up more than one as they are over 1000BU and you can only cash one in for refinement every game-week or so.

Step 2: Refining the Ore

  You will need to go to Faruza ibn Salaq, way over at 76N  49.1W on the north-west tip of Dereth to get the ore refined.  The quickest route there is Mayoi Portals - 60.8S, 80.3E, Lady Maila Estates - 74.4N, 46.3W, Beach Fort - 76N 49.1W.

(I recommend trying to catch a stonehold portal to shorten the run.)  Give him the ore and he will refine it for you.  Once you give him one ore, there is a quest timer that kicks in and will not let you get another one for quite some time.  This shot is from the little castle he is standing in.

  If you need to get rid of extra ore at this point, go give it to a town crier before you head up to crater.

Step 3:  Making the Weapon

  At this point you will need to go to crater village (64.8N  13.6E) and go to the top of the tower there.  You will need to have 9,500 pyreals on you.  Buy the appropriate glyph from Silencia.  Double click on the glyph you bought, then on the refined ore.  Give this to the Magma Golem and it will hand you a Hollow Weapon as shown below:

Hollow Weapon Stats	Axe	Dagger	Katar	Mace	Spear	Staff	Sword
Value	4000	4000	4000	4000	4000	2000	4000
Burden	800	135	135	900	700	450	450
Damage	8-16	2-6	2-6	6-14	3-12	8-10	8-16
Type	Slashing	Slashing/Piercing	Slashing	Bludgeoning	Piercing	Bludgeoning	Slashing/Piercing
Speed	(60)	(18)	(18)	(40)	(25)	(25)	(40)
Modifier			+5% Melee Defense
Special Abilities:	Hollow weapons are unenchantable, and they ignore magic buffs.  As such they are the perfect PK weapon.

UPDATE 11 April: Now you can upgrade these weapons (the non-racial ones) simply by applying a Bloodhunter oil to the weapon.

Follow the below steps with an Alchemist of good skill to create the Bloodhunter Oil:

1. Use Alembic on Stibnite --> Bloodhunter infusion

2. Use Bloodhunter infusion on Aqua Incanta --> Bloodhunter Oil

3. Hand Bloodhunter Oil to character with Hollow weapon

4. Apply Bloodhunter Oil to weapon --> Deadly Hollow Weapon

DEADLY Hollow Weapons	Axe	Mace	Spear	Sword
WIELD REQ.	You must have a 250 {Weapon type} weapon skill to wield this weapon
Value	4000	4000	4000	4000
Burden	800	900	700	450
Damage	11-22	bugged	8-18	12-24
Type	Slashing	Bludgeoning	Piercing	Slashing/Piercing
Speed	(60)	(40)	(25)	(40)
Modifier
Special Abilities:	Hollow weapons are unenchantable, and they ignore magic buffs.  As such they are the perfect PK weapon.