From WoWWiki

The Lexicon Demonica
Start	David Wayne
End	David Wayne
Level	67 72 78 (67)
Category	Shadowmoon Valley
Experience	12300
Rewards	4 10
Repeatable	No
Previous	Additional Materials

The Lexicon Demonica is part of a quest line to obtain some anti-Demon weapons. This quest must be done after Additional Materials.

Contents 1 Objectives 2 Description 3 Progress 4 Completion 5 Reward 6 Notes 7 Quest progression

Objectives

David Wayne at Wayne's Retreat wants you to bring him an Lexicon Demonica.

You will need:

• [Lexicon Demonica]

Description

Recreating the enchantments on the blade requires several spells to be spoken in demonic.

It's not something I was taught during my training as an apprentice, but there's no way around it. There's a book, called the Lexicon Demonica, that will provide most of the words I need, but it's in the hands of a powerful Shadow Council warlock.

Deep in the halls of Auchindoun's Shadow Labyrinth, it is held by Grandmaster Vorpil. Do whatever you must to secure the book and bring it to me.

Progress

Have you retrieved the book?

Completion

<David leafs through the book's pages, shuddering.>

This is not something to be trifled with, <name>. After the weapon is created, I will destroy it. There is enough demonic power about in the world without this text out in the open.

Reward

12300 experience (or a 7 38  compensation at level 70)

Notes

This item only drops from the non-Heroic instance.

Quest progression

•  [69] Illidari-Bane Shard (Alliance) / (Horde)
  •  [69G3] Capture the Weapons (Alliance) / (Horde)
    •  [69] The Hermit Smith (Alliance) / (Horde)
      •  [69] Additional Materials
        •  [69D] Fresh from the Mechanar
        •  [69D] The Lexicon Demonica
          •  [70D] Tear of the Earthmother
          •  [70D] Underworld Loam
            •  [70] Bane of the Illidari
              •  [70] Quenching the Blade