This page lists every Empty Ferrofluid Flask location in Valor Mortis.

Background: Why the Empty Ferrofluid Flask Changes William's Healing Margin

Valor Mortis Empty Ferrofluid Flask locations matter because an Empty Ferrofluid Flask provides an extra Ferrofluid Flask for healing. The guide describes these flasks as a highly important resource and recommends going out of the way to find them. Their value rises when exploring perilous areas full of mobs or when taking on bosses, because more healing charges increase the chance of surviving difficult encounters.

The guide also points readers to broader help for William's journey, including a Valor Mortis walkthrough, guides, and tips. Screenshots in the source material are credited to One More Level/Eurogamer.

Development Process: The Flask Locations Appear as Abilities and Regions Open

The numbered flasks can be read as a progression timeline. Each location becomes practical only after a certain tool, route, or chapter has been unlocked.

Early Stage: The Climb Lantern and the First Ranged Weapon

Empty Flask #1 appears at the earliest stage described in the guide. After receiving the first ranged weapon and being introduced to shooting Weak Spots, continue ahead. The next Lantern, The Climb, is a short distance away, and the Empty Ferrofluid Flask is in the chest beside it.

This is the first clear marker of the timeline because it is tied to the introduction of ranged combat rather than to a later traversal ability.

Fallen Village Stage: The Grapple Route into the Burning Wheat Field

Empty Flask #2 becomes accessible after unlocking the Grapple ability. Go to the burning village across the pond from the Marketplace Lantern in the Fallen Village area. Follow the grapple points through the area to reach a small wheat field. The field contains a few gunmen, some tall soldiers, and a Howler enemy. The chest is outside the burning house at the back of the area and is guarded by an enemy.

The Grapple requirement makes this a mid-early location. It rewards players who revisit the Fallen Village once the area's traversal options open.

Caverns Stage: The Old Mine Lantern, Stasis, and Moving Platform

Empty Flask #3 is found from the Old Mine Lantern in the Caverns. Go straight ahead into the mines. Use the crate in the room, which can be frozen with Stasis, to reach the opposite side. Continue further into the cave from there. On the first left, there is a moving platform whose cog can be frozen with Stasis to reach a chest containing the Empty Ferrofluid Flask. Clear the enemy above the cog first.

This location is more puzzle-oriented than the first two. It depends on Stasis and a specific route from the Old Mine Lantern.

Vale of Wrath Stage: The Poisoned Camp, Bridge Shortcut, and Locked Gate

Empty Flask #4 is best accessed after exploring the Poisoned Camp in the Vale of Wrath. Reach the bridge with the Iron Marshall-like enemy on it and unlock the shortcut back to the Under the Bridge Lantern on the opposite side. A ladder can be kicked down there to drop to the Lantern.

After the bridge, there is a locked gate. Climb the rocks straight ahead and wall-ride into the interior of the building to use a lever that opens the gate. Use Stasis on the cog powering the gate so it does not close immediately. Then go through the gate and into the village ahead.

Continue until reaching a large camp with another Iron Marshall-like enemy, multiple soldiers, and Howler enemies. In the middle of this area, a chest contains an Empty Ferrofluid Flask.

This is the longest route in the guide. It ties the Flask to a major shortcut, a gate mechanism, and a larger enemy camp.

University Stage: The Main Hall Lantern, Nephtoglobin Foundation, and Statue Lever

Empty Flask #5 begins from the Main Hall Lantern in the University. Go upstairs and right through the open door. Use the Nephtoglobin foundation to jump to the opposite side of the hall. Go right, then left, and burn the yellow growth blocking the doorway to continue.

Go left again and keep right along the following hallway until reaching two staircases and multiple enemies. Destroy the orange Nepthtoglobin node atop the rightmost staircase to reveal a lever. Pulling the lever moves the statue between the two staircases, allowing you to go behind the statue and open a chest containing an Empty Ferrofluid Flask.

This location reflects the later University section. It combines platforming, burning growth, combat around the staircases, and a statue puzzle.

Latest Progress: The Known Flask Count, Louis Purchase, and Checklist Status

Purchasable Flask: Abandoned Church and 5000 Catalysts

Beyond the five numbered finds, the guide lists one purchasable option. An Empty Ferrofluid Flask can be bought from Louis in the Abandoned Church for 5000 Catalysts.

The guide notes uncertainty about whether the flask was available from the start or was added to Louis' inventory later. The author did not purchase anything from Louis until after clearing the University. The practical takeaway is to check Louis' inventory between chapters for new upgrade materials and possible Flask availability.

Current Stage: Five Numbered Finds, One Purchase, and Related Guides

At the stage described by the source guide, the known set consists of five numbered Empty Ferrofluid Flasks and one flask that can be purchased from Louis. The guide presents a table and checklist for tracking which numbered flasks have been collected, then notes that more locations may be added as the author finds them.

The source guide also directs readers to all Amber locations, where to find all Ferrofluid Flask Power Upgrades, and the list of all bosses. For a player moving through William's journey, the most important timeline is simple: collect the early Lantern chest, return after Grapple, use Stasis in the Caverns, follow the Vale of Wrath shortcut route, solve the University statue lever, and keep checking Louis' inventory in the Abandoned Church.