Start from Heide’s Tower of Flame
Defeat Dragonrider
Go through the path past the Old Dragonslayer arena
Continue into No-Man’s Wharf
Reach the ship and travel to Lost Bastille
Progress through Lost Bastille
Reach Sinner’s Rise
Defeat the Lost Sinner
Use the Bastille Key to open the path to Belfry Luna
Enter the Belfry Luna area
Find and defeat the Old Dragonslayer boss