Saturnus Nostradamus Enigma is a side mission in Assassin’s Creed Unity that makes you solve three riddles in order to complete it and collect a Nostradamus Fragment collectible. These fragments open doors in the Armor Room beneath the Café Théâtre’s.'; document.getElementById("serge_648ac998c20ba86b43957c42").style.display = "block"; } Saturnus Enigma is obtained from a rune found on the ground in the Palais De Justice region, Île de la Cité section of the Paris map, slightly northwest of Notre-Dame and close to the north river bank. It is a three star difficulty mission whose riddles are solved close to the starting point and at Notre-Dame.

Saturnus Enigma Starting Location

1st Riddle Solution

I wield two blades,
Flanked by Justice and Law.
I strike true and fair, hour by hour,
For monarchs and peasants alike.

It is immediately made clear that you are looking for two statues of Justice and Law placed next to a clock. I was lucky enough to spot this very object not far west of the starting point. I would have been quite lost otherwise.

2nd Riddle Solution

Encircled by 24 petals of light,
Our Lady of the Rose watches, silent as stone,
O’er believers below.
Look to the Lady lit by the setting sun.
Look to the blossoming rose.

I had no idea what this meant but a Google search helped me discover that Lady of the Rose might refer to Notre-Dame itself. There is a Notre-Dame Rose window that is impressive and that led me to the solution of the second riddle.

3rd Riddle Solution

Stay with Our Lady, standing between flowing waters.
Count one for each book of the Pentateuch from rose to transept.
Five arches, five wide-open eyes, five nightmares.
The last sits atop our treasure:
The gate to the infinite.

Knowing that Lady refers to Notre-Dame I knew immediately that the last solution is found on the cathedral. Since I climbed the building before I remembered the arches it has on its side so I went to the south arches and found the third riddle solution on the ground there.