From Diablo Wiki
Are you looking for The Archivist (april fools)
 Farming for The Archivist
- From the Quest Selection screen take quest 8. The Black Soulstone > Realm of Shadow. You will spawn in the Archives of Zoltun Kulle.
- Cross the bridge to The Unknown Depths.
- If he's not there leave the game and resume and begin again.
- He is involved in two achievements, Haunted and Never Seen that Before.
- If you have not found The Tomekeeper yet (also needed for Haunted), do not leave but instead go back up to The Terminus and take the bridge to Realm of Shadow as he can spawn there.
 Associated Achievements
Archivist is in some way involved in the following achievement(s).
|10|| Meet the following ghosts.
There was an Archivist in Diablo 3 before this ghostly version appeared. The original Archivist revealed by Blizzard back in April of 2009 turned out to be an April Fool's joke. So Alimet Two Quills, master of illumination, Morienne the Scrivener and Salazar Cid, the Master Transcriber of Gea Kul were never to see the light of day in Diablo 3.
|Monsters of Diablo III Beasts Beasts: Superunique Demons Demons: Superunique Humans Humans: Superunique Undead Undead: Superunique Objects Bosses Boss Mods Monster Info Fanmade|
Bat - Beast - Blood Hawk - Demonic Hellflyer - Electric Eel - Khazra - Lacuni - Lamprey - Quill Fiend - Rockworm - Sand Monster - Sand Shark - Sand Wasp - Scavenger - Spider - Spiderling - Swarm - Withermoth - Wood Wraith -
|Primary Quest Uniques||
Act One Bosses:
Skeleton King -
The Warden -
Strong CC (Limit 1): Knockback -- Nightmarish -- Vortex -- Jailer
|Act One Uniques||Araneae - Web Spit||Leoric - Summon Skeleton, Teleport Strike, Triple Cleave||The Butcher - Smash, Grappling Hook, Spear, Frenzy Charge|
|Act Two Uniques||Maghda - Forcefield, Summoning Ritual, Punish, Moth Dust, Teleport.||Zoltan Kulle - Fiery Boulder, Time Bubble, Ceiling Collapse, Energy Twister,Vanish, Creepy Laugh||Belial - Phase One: Triple Fireball, Summon Vipers. Phase Two: Poison Meteors, Ground Pound, Lightning Strike, Lightning Breath.|
|Act Three Uniques||Ghom - Acid Slime, Sneeze, Gas Cloud, Chomp.||Siegebreaker - Triple Hit, Charge, Leg Stomp, Grab and Throw.||Cydaea - Pain Bolts, Web Trap, Spider Pits.||Azmodan - Bellyflop, Laser Attack, Falling Corpses, Demon Gate, Pool of Destruction, Globe of Annihilation.|
|Act Four Uniques||Rakanoth - Cleave, Teleport Strike, Blade Strike, Volley, Summon Minion.||Izual - Frost Nova, Frozen, Summon Minions.|| Diablo - Phase One: Claw Rip, Charge, Hell Spikes, Shadow Vanish Grab, Curse of Destruction, Ring of Fire, Ground Stomp, Curse of Anguish, Curse of Hatred. |
Phase Two: Shadow Clone. Phase Three: Overdrive, Lightning Breath.