Chapter XII – All That Remains is the twelfth part of a walkthrough for the game A Plague Tale: Innocence, following Chapter XI – Alive.
XII – All That Remains Guide
Look for medicine in Hugo’s wing
There’s no going over the broken bridge, so head to the right and across the log. It’s mentioned that the rats are acting strangely, but don’t worry about them just yet. Continue until the rats actually start blocking your path.
Head right and upward until you see a cart blocked by a chain. Break the chain.
Turn around and hop down onto the path the rats were at and continue on.
At the building, throw some Odoris to one side in the building, then light the pyre. Go in and on the table is the collectible Calamus.
Back out of the house, check the gate on the right and see that it’s locked. Lucas will need to man the light, so go downward and progress forward as he keeps the light on you. Move to the next beam and rotate it to the locked door Lucas stands at. Aim a rock and shatter the chain.
Rotate the beam again to give yourself a clear passage to the next light. Throw an Odoris at the left of the cart (close to you) and go to the next light source.
Throw an Odoris between you and the second light source in the next section to attract the rats. Then throw a Luminosa on them to get them out of the way. Up ahead is a crafting station. Go through the big door, otherwise, and earn the achievement Merciful.
Up ahead is a cutscene with your father’s body. Once you’re out of it, throw an Ignifer at four ratnados.
Lucas will give you the torch. Take it and progress forward.
Inside, near the second servant’s body is a chest with the collectible Harnois Helmet.
Continue on to Hugo’s room for a cutscene.
Leave the house
Go out through the door and destroy a ratnado. Lucas will light the fire ahead before you run to it, just focus on the next ratnado coming up on the right side when you get there. Crawl underneath the beam and head downward.
Find the medicine in Beatrice’s laboratory
Once outside, keep heading straight on the path to find a Cinquefoil flower collectible.
Run downward and light the haystack, then the brazier, Light two more haystacks and a brazier again.
Turn around to see an Alchemist Cart. Ignifer the lamp first. Odoris the middle section in front of you, then use Luminosa to destroy those rats. That should create an opening. Move the light beam to the left to create a path for you.
After you’re done with the cart, leave and Ignifer the flame on the cart.
Keep to the side of it as you move forward, and make sure you’ve made around 10 Ignifers for upcoming ratnados.
Find Beatrice’s laboratory
Head on down into the place you were never supposed to go as a child.
On the right side are a bunch of rats. Extinguish the flame on the wall, then use an Odoris on the right side of the fence. Once the rats are distracted, move the cart and run into the next section.
Drop down into the lit up pit and crouch down the pathway. Grab a stick, light it, and travel left or right, but keep to the areas where you’re jumping over obstacles to get to the next bonfire pits to light. You’ll need to light two before making your way back up to Lucas.
Approach the lion head and interact with it.
Find the medicine in Beatrice’s laboratory
Go inside to eternal darkness, but don’t worry, Lucas will start lighting some of the braziers for you. By the boilers is a Family Tree collectible.
Open the phoenix box for a cutscene.
Create Ignifers, because you’ll need them.
Light the center brazier and prepare to move it to the left where the curtained area is. Grab the bottle on the far left. Take care of two ratnados before running back to Lucas.
Clear a path to the still for Lucas
Clear out another two before going back to the center brazier and moving it to the right for Lucas.
Destroy the ratnado on the left. After that, stop as the ratnados occur so Lucas can take care of them for you.
Defend Lucas while he prepares the remedy
Once Lucas is busy, destroy two ratnados.
Bring Lucas back to the central alcove
Wait for him to stop talking and then start moving the brazier back to the left side.
Defend Lucas while he prepares the remedy
Get rid of four ratnados and a cutscene will begin, all the way to the end of the chapter.