Bastille Key | Dark Souls 2 Wiki

Bastille Key
Unlock doors on either side of the entrance to The Lost Sinner.

Bastille Key is a Key Item in Dark Souls 2 (DKS2). Bastille Key, a relic from the past when a lord in Bastille, consumed by fear of the spreading curse, incarcerated countless subjects, perceiving them all as carriers of the blight. Use this key to unlock doors on either side of the entrance to The Lost Sinner. Key Items are found in specific locations or are given by a related NPC which are used to unlock areas, quests, diversify the inventories of Merchants and to further progress the game's story.

Long ago, a bastille lord, driven to desperation by the rapid spread of curse across the land, began to see each subject as a carrier of the blight, and locked them away in droves.
This entire bastille was turned into a prison, and left abandoned to rot its prisoners.

Bastille Key Usage in DKS2

• Unlock doors on either side of the entrance to The Lost Sinner.
• Unlocks the door in Sinners' Rise past the water giants, on the top left path before the gate. Fire seed x1.
• Unlocks the locked door at Blacksmith McDuff
• Unlocks the cell door next to Straid of Olaphis' cell. Petrified Dragon Bone and 3x firebombs on a corpse inside the cell.

Dark Souls 2 Bastille Key Location

• Treasure from a body near the Upper Ramparts Bonfire in Belfry Luna (After Belfry Gargoyles). Near where Vorgel the Sinner and the dogs are.
• Scholar Of The First Sin: Servant's Quarter bonfire, go to the group of boxes at the edge of the broken bridge (Where the Rupturing Hollow used to be) it has taken the place of the human effigy that was there in the regular game.

Bastille Key Notes and tips in Dark Souls 2

• Notes and tips go here.