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The Heavy Iron Key is a key in Dark Souls II.

In-Game Description

A piece of iron shaped like a key.
Past the altar deep within the Iron Keep and through a door is the tower that the Old Iron King used to produce iron.
The unearthly weight of this chunk of iron is a reminder of the Iron King's own immeasurable strength.

Availability[]

Use[]

Opens the door in the Iron Keep leading to Brume Tower.

Keys
Aldia KeyAntiquated KeyAshen Mist HeartBastille KeyBrightstone Key

Dragon StoneDragon TalonDull EmberEternal Sanctum Key
Eye of the PriestessFang KeyForgotten KeyFrozen FlowerGarrison Ward Key
Giant's KinshipHeavy Iron KeyHouse KeyIron KeyKey to King's Passage
Lenigrast's KeyRotunda LockstoneScorching Iron ScepterSoldier Key
Tower KeyTseldora Den KeyUndead Lockaway Key

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