Assassin's Creed Wiki
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Knowledge Is Power was a virtual representation of one of Ezio Auditore da Firenze's genetic memories, relived by Desmond Miles in 2012 through the Animus.


During the famed Venetian Carnevale celebration, Ezio Auditore visited his friend Leonardo da Vinci, in order to ask him for a spare mask that he could use to hide his identity during the event. He also gave Leonardo more Codex pages for him to decipher, which were later revealed to be the designs for an upgrade for the Hidden Blade, featuring a small firearm.


Leonardo decoding the Codex page

After failing to save Doge Mocenigo, Ezio returned to Leonardo at his workshop.

  • Leonardo: Ezio! Dio mio (my God)! You're alive! Is it true? They say you killed the Doge.
  • Ezio: I was trying to save him, Leonardo. But the truth matters little. I failed. And now I'm the most wanted man in Venezia.
  • Leonardo: Well, perhaps you are in luck! It's Carnevale in Venezia. This is the time when everybody goes without a face!
  • Ezio: That's why I'm here. Do you have a mask I can wear?
  • Leonardo: Of course, of course, somewhere in here...
  • Ezio: Grazie, amico mio. (Thanks, my friend.) And I have something for you.
  • Leonardo: Ohhh! More of the Codex! Aha... This one's quite complex... Hmm... it's a new design, my friend... A mechanism for your wrist, but not a blade... In fact, it seems to be a kind of arma da fuoco (firearm), but as small as a hummingbird!
  • Ezio: Is it possible?
  • Leonardo: I have no idea. Let's build it and find out!

Leonardo managed to construct the Hidden Gun and Ezio went to test it on some dummies that had been placed by the inventor. After proving it worked, he returned to Leonardo.

  • Ezio: You've done me good, brother!
  • Leonardo: Ma certo, (Of course,) but I'm sure your return was not just to play with new toys. Is it about this terrible new Doge they've installed... Marco Barbarigo?

Ezio nodded lightly.

  • Leonardo: Then you'll want to speak with your friend Antonio. I've seen him quite a bit lately at a, um, mutual friend's. I'd look for him there, in the Dorsoduro district to the south. Ask for Sister Teodora.
  • Ezio: Sister?
  • Leonardo: Well, um... In a way. Yes, sister... And Ezio, you can't be carrying weapons out there today.
  • Ezio: Grazie, (Thanks,) Leonardo. Now, about that mask...


Ezio received and used the Hidden Gun for the first time, and he was given a mask to keep him incognito for the duration of Carnevale.


  • Looting the dummies after shooting them would result in obtaining a "Key". However, the keys provided no real use, leaving them as little more than an easter egg.
  • Aborting this memory can cause the bracer of Ezio's Hidden Blade to disappear until the memory is replayed and completed.



Assassin's Creed II memories
Main memories
Sequence 1: Ignorance is Bliss
Boys Will Be Boys - You Should See the Other Guy - Sibling Rivalry - Nightcap - Paperboy - Beat a Cheat - Petruccio's Secret - Friend of the Family - Special Delivery - Jailbird - Family Heirloom - Last Man Standing
Sequence 2: Escape Plans
Fitting In - Ace Up My Sleeve - Judge, Jury, Executioner - Laying Low - Arrivederci
Sequence 3: Requiescat in Pace
Roadside Assistance - Casa Dolce Casa - Practice Makes Perfect - What Goes Around - A Change of Plans
Sequence 4: The Pazzi Conspiracy
Practice What You Preach - Fox Hunt - See You There - Novella's Secret -Wolves in Sheep's Clothing - Farewell Francesco
Sequence 5: Loose Ends
Four to the Floor - A Blade With Bite - Evasive Maneuvers - Town Crier - Behind Closed Doors - Come Out and Play - The Cowl Does Not Make the Monk - With Friends Like These
Sequence 6: Rocky Road
Road Trip - Romagna Holiday - Tutti a Bordo
Sequence 7: The Merchant of Venice
Benvenuto - That's Gonna Leave a Mark - Building Blocks - Breakout - Clothes Make the Man - Cleaning House - Monkey See, Monkey Do - By Leaps and Bounds - Everything Must Go
Sequence 8: Necessity, Mother of Invention
Birds of a Feather - If At First You Don't Succeed... - Nothing Ventured, Nothing Gained - Well Begun Is Half Done - Infrequent Flier
Sequence 9: Carnevale
Knowledge Is Power - Damsels in Distress - Nun the Wiser - And They're Off - CTF - Ribbon Round-Up - Cheaters Never Prosper - Having a Blast
Sequence 10: Force Majeure
An Unpleasant Turn of Events - Caged Fighter - Leave No Man Behind - Assume the Position - Two Birds, One Blade
Sequence 11: Alter Egos
All Things Come to He Who Waits - Play Along
Sequence 12: Forlì Under Attack
A Warm Welcome - Bodyguard - Holding the Fort - Godfather - Checcomate - Far From the Tree
Sequence 13: Bonfire of the Vanities
Florentine Fiasco - Still Life - Climbing the Ranks - Upward Mobility - Last Rites - Port Authority - Surgical Strike - Hitting the Hay - Arch Nemesis - Doomsday - Power to the People - Mob Justice
Sequence 14: Veni, Vidi, Vici
X Marks the Spot - In Bocca al Lupo
Secret locations
Il Duomo's Secret - Torre Grossa's Secret - Ravaldino's Secret - San Marco's Secret - Visitazione's Secret - Home Invasion - Over Beams, Under Stone - Shipwrecked - Paying Respects
Beat up events
A Woman Scorned - Wanton Hubby - Philanderer on the Roof - Promiscuity Knocks - Spear of Infidelity
San Gimignano Dash - Florentine Sprint - Romagna Hustle - Venetian Rush - San Marco Scuttle - Horseplay
Assassination contracts
Day at the Market - Fallen Archers - Political Suicide - Reap What You Sow - Flee Market - Supply in Demand - Beginnings of a Conspiracy - Arch Enemies - Wet Work - Blade in the Crowd - Thicker than Water - Zero Tolerance - Honorable Thief - No Laughing Matter - False Legacy - Don't Get Your Hands Dirty - Showtime - Thin the Ranks - Go Towards the Light - Meeting Adjourned - Needle in a Haystack - Leader of the Pack - Peacekeeper - Caveat Emptor - Vertical Slice - No Camping - Dead on Arrival - Mark and Execute - Crash a Party - Hunting the Hunter
Courier assignments
Wedding Bells are Ringing - The Messenger's Burden - Speedy Delivery - The Perfect Marriage - Casanova