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This article is about the memory of Ezio Auditore da Firenze. You may be looking for the landmark.

The Yerebatan Cistern was a virtual representation of one of Ezio Auditore da Firenze's genetic memories, relived by Desmond Miles in 2012 through the Animus.


Ezio Auditore entered an underground cistern located directly underneath the location where Niccolò Polo's old trading post was.


Ezio slid through a tunnel and arrived in the cistern.

  • Guard 1: Ti distihìa! (What misery!) Do you know how long we've been searching this filthy Cistern?
  • Guard 2: I've been here a few weeks.
  • Guard 1: Thirteen months! Ever since the Grand Master found that damned key. But he hasn't got a clue what he's doing. All he knows is they're somewhere in the city.
  • Guard 2: This is a big city.
  • Guard 1: To xèro! (I know!) That's what I said.
  • Captain 1: Back to your posts, agìrtes (bums)!
Cistern 4

Ezio entering the first chamber

Ezio arrived at the first excavation room of the underground cistern.

  • Guard 3: It stinks down here. We'll find the keys soon.
  • Captain 1: Look alive, eh? We pay you to watch the doors, not your feet.

Ezio killed the captain and acquired his key. He then unlocked the gate to another chamber.

  • Guard 4: I'm sick of this place. I really am.
  • Guard 5: Eight hours of this filth. Apistefto. (Unbelievable.)
  • Guard 6: The Grand Master has his reasons. I only wish I knew what they were.

Ezio arrived at the second excavation room.

  • Captain 2: Petros! Make sure we have enough torches for the excavation. I am tired of stumbling around in the dark.

Ezio killed the captain and took his key. He then entered another chamber, where he witnessed a patrol looking for him.

  • Guard 7: Search every shadow!

Ezio arrived at the last excavation room.

  • Captain 3: There is someone down here with us. Keep your eyes open and your hands steady.
  • Guards: Get reinforcements! This is an attack!
    What was that?
    There! In the corner! I saw something.
    Where is he?
    They're coming from everywhere!

After identifying and assassinating the last Templar captain, Ezio took his key. He then unlocked the gate to a hallway, where he used his Eagle Sense to find the hidden room where a Masyaf Key was held.


Ezio retrieved one of the keys to Altaïr Ibn-La'Ahad's library.


Assassin's Creed: Revelations memories
Main memories
Sequence 1: A Sort of Homecoming
The Hangman - A Narrow Escape - A Journal of Some Kind - A Hard Ride - The Wounded Eagle
Sequence 2: The Crossroads of the World
A Warm Welcome - Upgrade and Explore - The Hookblade - The View from Galata - Advanced Tactics - On the Defense - On the Attack
Sequence 3: Lost and Found
The Prisoner - The Sentinel, Part 1 - Guild Contracts - Bomb Crafting - A Familiar Face - The Yerebatan Cistern - Quid Pro Quo - The Mentor's Keeper - Curse of the Romani - The Sentinel, Part 2
Sequence 4: The Uncivil War
The Prince's Banquet - An Uneasy Meeting - The Fourth Part of the World - Signs and Symbols, Part I - Galata Tower - The Mentor's Wake
Sequence 5: Heir to the Empire
The Janissaries - The Arsenal Gates - Arsenal Infiltration - Portrait of a Lady - Signs and Symbols, Part II - The Forum of the Ox - A New Regime
Sequence 6: Fortune's Disfavor
Into the Shadows - Honor, Lost and Won - Bearer of Mixed Tidings - A Little Errand - Signs and Symbols, Part III - The Maiden's Tower - The Mentor's Return - Setting Sail
Sequence 7: Underworld
The Hidden City - The Spy Who Shunned Me - The Renegade - Decommissioned - Last of the Palaiologi - Escape - Passing the Torch
Sequence 8: The End of an Era
Discovery - The Exchange - End of the Road
Sequence 9: Revelations
A Homecoming - Lost Legacy - The Message
Secret locations
Hagia Sophia's Secret - The Impaler's Tomb
Citizen recruitment
The Brawler - The Pupil - The Avenger - The Acrobat - The Beggars - The Pickpocket
Master Assassin missions
The Deacon (Part 1 - Part 2) - The Trickster (Part 1 - Part 2) - The Champion (Part 1 - Part 2) - The Guardian (Part 1 - Part 2) - The Vizier (Part 1 - Part 2) - The Thespian (Part 1 - Part 2)
Faction HQ missions
Unfortunate Son - Loose Lips
Book quests
The Polo Symbols: Hippodrome - The Polo Symbols: Galata - The Polo Symbols: Arsenal - The Polo Symbols: Forum of the Ox - The Polo Symbols: Aqueduct - The Polo Symbols: Church I - The Polo Symbols: Church II
Piri Reis missions
Thunder - Smoke Screen - Cherry - Datura - Caltrops - Smoke Decoy - Sticky Situations - Tripwire
Desmond's Journey
Doubts - Training - Escape - Metropolis - Regret
The Lost Archive
The End Is Only the Beginning - The Order - Abstergo - The Mole - Bleeding Effect - The Truth - The End of the Line