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The Hand of Science was a virtual representation of one of Arno Dorian's genetic memories, relived by a Helix initiate through the Helix Navigator.



  • Corpse - Professor Simon Marcel is bloody and badly burnt on the face and hands. Shards of glass have splintered into his face.
  • Bloody Bible - A bible from the Church of Saint Côme: 49 Rue du Four. It has a bloody hand print on its front page and an inscription scrawled inside: "Repent now Monsieur Marcel. Repent while you still grace the earth."
  • Exam of Lionel Viala - Lionel received a near-perfect score on his chemistry exam.
  • Exam of Pierre Simeoni - Pierre has failed his chemistry exam. A note has been written hastily at the bottom: "We shall discuss this for the last time. Failure is not an option. Come speak to me."
  • Trail of blood - A blood trail. It looks to have dried to a dark brown.
  • Statement of Lionel Viala - Lionel Viala (student of the victim): He seems shocked at the death of Professor Marcel. He claims Marcel was only a tough teacher because he cared deeply for his students.
  • Statement of Pierre Simeoni - Pierre Simeoni (student of the victim): Professor Marcel's student Pierre clearly has a grudge against him and is not afraid to admit it.


  • Key - A key with a tag that says "Office."
  • L'avantcourer Journal - A journal containing an essay by Professor Marcel in support of the findings of Antoine-Laurent de Lavoisier against the phlogiston theory of combustion. It looks as though he disputes the recent findings of Professor Frison, who supports phlogiston theory.


  • Statement of the church deacon - Deacon Manon (assistant to the priest): The deacon saw Professor Marcel and Father Carriveau arguing often. He also noticed Marcel was working late yesterday.
  • Statement of the preist - Father Carriveau (priest): To say that the Father dislikes Professor Marcel is an understatement. Marcel injected his own thoughts on religion in his lectures, and made enemies of the church as a result.


  • List of chemicals - A hand-written list of chemicals that look to be part of the lesson plan for the day: Muriatic acid, Sulfuric acid, Precision Scale and Glass Vials. Sulfuric acid is circled.
  • Manifesto - A manifesto written by Professor Marcel, it begins: "As a youth I may have been immune to logic, continuing to follow the church as a blind sheep to slaughter. But with age, the hand of science reached out to me, and freed me from perpetual ignorance."
  • Scrap of paper - A scrap of paper. The word "Sulfuric Acid" has been written in a variety of styles.


  • Chemical vials - The table is covered in vials filled with a variety of chemicals. They are all neatly labeled as either "Ethanol" or "Sulfuric Acid", except the largest bottle of sulfuric acid, whose label is crudely placed and peeling.
  • Lesson plan - A lesson plan: "Today's Experiment: Mixing Sulfuric Acid with Ethanol to produce Diethyl Ether, a fascinating and useful compound used as anesthetic by Field Surgeons. Important - caution students to never mix NITRIC acid with ethanol! Stress that an explosion will result."
  • Smashed bottles - An explosion shattered the bottles.
  • Statement of the school caretaker - Georges Brion (school caretaker): The caretaker at the school seems to be fond of Professor Marcel, mostly because he cleaned up after himself. Looks like Marcel roomed with Professor Frison one floor up from the classroom.
  • Statement of Professor Frison - Professor Frison (colleague of the victim): He both roomed with Professor Marcel and shared an office with him for several years at Chemical Science School Eustache du Gary. Claims he's in complete shock.



  • Lionel Viala (A student of Professor Marcel at Chemical Science School Eustache du Gary): I'm shocked. He was quite meticulous, but I didn't mind. He'd even given me lessons last night. Professor Marcel was cold, but a kind man at heart.
  • Pierre Simeoni (A student of Professor Marcel at Chemical Science School Eustache du Gary): I couldn't stand Professor Marcel. He was so strict. I'm sure his office mate, Professor Frison, is happy he's dead, I know he is.


  • Deacon Manon (assistant to the priest) To tell you the truth, I'd often hear Professor Marcel and Father Carriveau arguing in the street. I did notice the professor was working quite late on my walk home past the school. The candles from his office were lit.
  • Father Carriveau (priest) May he kneel before the devil and learn the price of his blasphemous teachings. He and his students, denouncing our Lord and questioning our holiest truths.


  • Georges Brion (A caretaker of the Chemical Science School Eustache du Gary): Could be Professor Marcel's experiment went wrong. Just look at that mess! Such a shame. He was a good man, always made sure to clean up after himself. Not sure how he roomed upstairs with that filthy Professor Frison. That man was raised in a barn.
  • Professor Frison (A fellow professor and colleague of Professor Marcel at Chemical Science School Eustache du Gary): As a fellow member of the faculty I'm devastated. As a friend, heartbroken. Professor Marcel and I roomed together for several years. We shared our offices. Of course we had our differences, but I'm in complete shock.




Assassin's Creed: Unity memories
Main memories
The Tragedy of Jacques de Molay
Sequence 1
Memories of Versailles - The Estates General - High Society
Sequence 2
Imprisoned - Rebirth
Sequence 3
Graduation - Confession - Fin de Siecle
Sequence 4
The Kingdom of Beggars - Le Roi Est Mort
Sequence 5
The Silversmith - La Halle aux Blés - The Prophet
Sequence 6
The Jacobin Club - Templar Ambush
Sequence 7
A Cautious Alliance - Meeting with Mirabeau - Confrontation - The Resistance
Sequence 8
The King's Correspondence - September Massacres
Sequence 9
Starving Times - Hoarders - The Escape
Sequence 10
A Dinner Engagement - The Execution
Sequence 11
Bottom of the Barrel - Rise of the Assassin - The Bastille
Sequence 12
The Supreme Being - The Fall of Robespierre - The Temple
Cooperative missions
Women's March - The Food Chain - The Austrian Conspiracy - Political Persecution - The Tournament - Heads Will Roll - Les Enragés - Danton's Sacrifice - Moving Mirabeau - Jacobin Raid - The Infernal Machine
Tithing Templars - Catacomb Raider - The Party Palace - Royals, Guns and Money - Smuggler's Paradise - Ancient History - It Belongs in a Museum
Paris stories
Tall, Dark Strangers - Flamel's Secret: The Monks - Flamel's Secret: Denis Molinier - Flamel's Secret: The Elixir of Life - Using the Ol' Noggins - Waxworks - Sewer Rat - À la Lanterne! - The Great Escapist - Critical Comedown - Scene Stealer - Devilishly Tricky - My Kingdom For Some Whores - De Sade's Reprieve - Sadistic Blackmail - The Cult of Baphomet - The Ritual of Baphomet - La Bande Noire - Iscariotte, the Giant - Headlining the Guillotine - A Fistful of Duelers - The League of the Crimson Rose - Return of the Crimson Rose - Crimson Sunset - Flying Boy - Carmalite Nuns - Stop the Presses! - Encyclopédie Diderot - Désirée Desired - Désirée Dismayed - Désirée Delighted - French Crown Jewels - Coat of Arms - Swiss Stash - Vicious Verses - Arm the People - "Escort" Mission - Cassini's Constellations - The Condorcet Method - A Romantic Stroll - Signaling Officer Murat - A Nice Chappe - Precious Correspondence - Constructing a "Close Shave" - Up in Arms - Marianne Returns Home - The Little Prince - Turtle, Snake, Bear, Paper, Scissors - Tapestry Thief - Cartouche's Memoirs
Café Théâtre missions
Explore the Café Théâtre - Auto-Da-Fé - Colette - Damsel in Seamstress - The Queen's Necklace - Foxy Renard
Social Club missions
Bridge Brigands - Marat's Missive - Let Them Eat Hay - Cat Food on a Hot Tin Roof - Hoarding Hostages - Café Procope - Roux's Remains - An Engaging Egyptologist - Artful Dodger - A Dramatic Exit - Breaking the Habit - Extortion Contortion - Chouan Riddles - Bara's Funeral - Retribution for a Rabble-Rouser - The Black Office - Betrayer of the Queen - Spiked Bourbon - Special Delivery - Smoky Yet Robust
Murder mysteries
Murder Foretold - Barber of Seville - The Body in the Brothel - Ancestral Vengeance - The Body Politic - Bones of Contention - The Assassination of Jean-Paul Marat - Hot Chocolate to Die For - The Hand of Science - The Decapitated Warden - The Death of Philibert Aspairt - The Red Ghost of the Tuileries - Cut the Middle Man - A Dash of Poison
Nostradamus Enigmas
Mercurius - Venus - Terra - Mars - Jupiter - Saturnus - Aries - Taurus - Gemini - Cancer - Virgo - Leo - Libra - Scorpio - Sagittarius - Capricorn - Aquarius - Pisces
American Prisoner - The Chemical Revolution - Killed by Science
Dead Kings
Sequence 13
Buried Words - The Book Thief - A Shadow from the Past - Raising the Dead - Under Lock and Key - A Crown of Thorns
Cooperative and heist missions
Last Rites - Holy High Rollers
Stories of Franciade
Last Will - A Royal Hide - The Unopened Rose - The Eyes of the King
Murder mysteries
Blind Justice - Equal Justice
Suger's Legacy
I - Nativitatis Et Mortis - II - Morbum - III - Diabolus - IV - Natura - V - Crux - VI - Noctis - VII - Dies
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