Soul of Gwyndolin

The  is a consumable item in Dark Souls, it is the souls of Dark Sun Gwyndolin.

In-Game Description
Soul of Darkmoon Gwyndolin, god of the Dark Sun and guardian of deserted Anor Londo.

Special beings have specail souls.

Use the soul of Gwyn's lastborn to acquire a huge amount of souls, or to create a unique weapon.