This is clear as she was known to have attempted to recreate the first flame. The Lost Sinner is a fragment of the Witch of Izalith (insect size is small). This is lore speculation by user: 'arbitoruchiha'. Eons have passed since the legendary Witch walked the land, but such was her power that it persists even now. Indeed, she committed what some would believe to be the ultimate sin - she attempted to relight the First Flame. She is located deep after the Lost Bastille and into Sinners' Rise, in a dark cell that you may illuminate if you have obtained the Bastille Key from the Belfry Gargoyles or the corpse at the edge of the broken bridge if you are playing the SotFS edition.
Bosses are unique and challenging Enemies that drop Boss Souls capable of being transformed into powerful Weapons, Spells, and Items for the player.
Her ultimate sin, attempting to reignite the First Flame, is considered by some as the gravest of sins.
The Lost Sinner is a Boss in Dark Souls 2 (DKS2). The captive within the confines of Sinners' Rise, The Lost Sinner, perpetually inflicts punishment upon herself as atonement for the transgressions of her history.
