Head through the door that has been blasted open just next to the painting. Vault over the barrels then slide through the hole in the wall. Turn to the right and go through the open window across the beam there. Run across to the middle where there is a wooden structure. Pass underneath it and then cross over to the far side of the room.
When you make it to the outer portion, turn to the left. Head past the burning barrels into an explosion. Just make for the wooden ramp ahead of you. Run up it and drop down on the far side. Go straight for the next opening toward the middle past the ring of barrels. Jump from there toward the platform coming out of the central pillar. A cutscene runs with Arno almost falling into the inferno below. Just climb upwards.
At the top of the pillar turn just to the left. You want to head out along that beam that is sticking out of that area. Just after you leave it some barrels will crash down, destroying it. Go to the right and start climbing up and to the right. Get to the top of the support and turn to the right. Run across to the far side of the dome. Another short cutscene runs.
Head straight ahead and jump for the wooden plank in front of you. Grab it and keep climbing up. When you can, turn to the North and jump for the hanging platform. This will get you outside and finish out the memory.
- Investigate la Hale aux Bles
- Escape the area