Hidden Potential of the High Priest

To complete this achievement, you need to unlock one hidden appearance for your class. To be able to get a hidden appearance, you need to have the class hall unlocked and the base artifact for your spec.

Discipline
[item=139567] can be unlocked by collecting 12x [item=141332]
- Book 1: In Netherlight Temple, speak with [npc=111119] (choose the first option, then the middle option)
- Book 2: In Netherlight Temple, next to Meridelle Lightspark, on the bookshelf on the left side of the table
- Book 3: In Netherlight Temple, behind [npc=111738], on the table on the left side
- Book 4: In The Violet Citadel, behind [npc=113873], on the bookshelf to the right
- Book 5: Black Rook Hold (dungeon, any difficulty), after you defeat 1st boss, you will enter a room, book is on the left side on one of the tables
- Book 6: Aszuna, drops from [npc=106990] - /way #630 65.6 56.8 Chief Bitterbrine
- Book 7: Suramar, drops from Artificer Lothaire - /way #680 33.8 15.0 Artificer Lothaire
- Book 8: Stormheim, drops from [npc=90139] - /way #634 63.6 74.6 Inquisitor Ernstenbok
- Book 9: Scholomance (dungeon), in the room with the 1st boss, the book is on top of one of the bookshelves on the right side of the room
- Book 10: Scarlet Halls (dungeon), in the room with Flameweaver Koegler, the book is between the bench and the bookshelf on the left side of the room
- Book 11: Karazhan (TBC), after you kill The Curator, jump down to the right and head into the side alcove. There are 3 bookshelves, book is on the bottom of the leftmost bookshelf
- Book 12: Dragonblight, in the church, go to the second room to the left and the book will spawn on top of the bookshelf (1h respawn) - /way 72.2, 73.5
Once you have all the books, go back to [npc=111119]. He will combine them and give you the [item=139567].

Holy
[item=139568] can be created by combining:
- [item=140657] drops from [npc=95833] in Halls of Valor (any difficulty)
- [item=140656] can be bought from [npc=106904] (you need to be exalted with Valarjar)

Shadow
[item=139569] has a chance to drop from [npc=105393] in The Emerald Nightmare (any difficulty)

If [npc=59150] is not in the Scarlet Halls for you, you have picked up the keys near the entrance that will allow you access to the previous versions of the instance(s). Check if you have the [spell=419657] on you. If you do, go place the keys where you took them and it will be removed.

For Inkforge, it's first option, middle option and then middle option again for him to offer you the book