C
Celeb Spill Daily

Assassin's Creed Unity Leo Nostradamus Enigma guide

Author

Michael Green

Published Apr 13, 2026

Leo Enigma starts in Hôtel de Ville district of Ventre de Paris zone. This Nostradamus Enigma had some of the hardest riddles in Assassin’s Creed Unity, so much so that I had to change my approach on how to solve them.'; document.getElementById("serge_648ac998c20ba86b43957c42").style.display = "block"; } Being stuck on the first riddle for a while I decided to scout all the landmarks in all the surrounding zones to unlock in-game database entries for various locations. Reading these entries provided invaluable clues for this and other hard enigmas and solutions to their riddles.

Leo Enigma Starting Location

Leo nostradamus enigma start location
Get to the top of this tower to find the starting point of Leo Nostradamus Enigma
Leo nostradamus enigma start map
Map above shows where the church tower is located

1st Leo Riddle Solution

Above the dark shadows
Of the erstwhile bastion,
The tall square Sentinel silently watches
The 9th month spill his blood.

I spent hours until I managed to solve this riddle. “The 9th month spill his blood” seemed to refer to September Massacres of the French revolution when prisoners were killed. I vent to the Bastille but found no solution there. I started looking for other prisons through google but nothing significant came up. Erstwhile bastion suggested it was another fortress that had significance before the Bastille. I then went scouting nearby landmark, but that didn’t help. I noticed though that visiting significant landmarks unlocked database entires so I widened my search until I unlocked Grand Châtelet database entry that said “..this prison was once a fortress”, which matched the description of being a fortress and then a prison whose prisoners got massacred in the 9th month. I found the solution to the first riddle on top of the square tower (tall square Sentinel …).

2nd Leo Riddle Solution

The martyrs of Herod,
In their ageless temple,
Haunt the alchemist’s tones,
With their macabre, soundless dance.

Google search for “Martyrs of Herod Paris” returned an entry about Holy Innocents. One of the previous landmarks I discovered (and got the database entry for it) was Cimetière des Saints-Innocents. Turns out the solution to the second Leo Enigma riddle is at that cemetery (which is now defunct according to the Wikipedia article).

Leo nostradamus enigma second riddle martyrs of herod
Cimetière des Innocents fit the riddle description and is a landmark just a bit north of where we solved the first riddle.
Leo nostradamus enigma second riddle solution
Using your Eagle vision you will discover the second riddle solution rune on one of the walls.
Leo nostradamus enigma second riddle solution map
Map shows the exact spot you’ll find the solution at
Leo-nostradamus-enigma-second-riddle-location-map

3rd Leo Riddle Solution

In the Belly of the World,
The Saint of the Holy Stag
Still waits for his Austral hand
To reach the godly heavens.

“Belly of the World Paris” Google search returned an entry about Le Ventre de Paris (Stomach of Paris) which turns out to be Les Halles de Paris – central market center in Paris. This market is area just north of where you got the final riddle. There is a landmark there for Église St. Eustache church and that is where I found the solution to the third riddle. BTW, there is a database entry for this landmark and apparently St. Eustache’s symbol is a large stag dear (the more you know…)

Leo nostradamus enigma third riddle belly of the world
Le Ventre de Paris is The Belly of Paris and it also features a nearby church landmark.
Leo nostradamus enigma third riddle solution
Third and final Leo Enigma riddle is solved when you visit the roof of the church and find the rune.
Leo nostradamus enigma third riddle solution map
Map shows that the solution is in the southwest corner of the church.
Leo-nostradamus-enigma-third-riddle-map