Solve the puzzle is a mission objective in Assassin's Creed Unity: Dead Kings (ACU:DK)
"Solve the puzzle" is a mission objective in Sequence 13 / Memory 04: Raising the Dead
Walkthrough[edit]
There are images below each of the signs showing a horse. You need to get the sequence of events right.
The solution is 3, 1, 2, 4
This will cause the specter in this room to vanish and appear in the main room.
