And both are first transformed from a third weapon, the Stone-Sheathed Sword.

At the far north end of the path is the entrance to the Fog Rift Catacombs.

Hit the wall on your right in this room, and another secret passage will be revealed.

Two side-by-side screenshots of the player in Elden Ring: Shadow Of The Erdtree raising high their weapon and performing the skill of the Sword Of Light (left) and the Sword Of Darkness (right).

Right in front of the Castle Watering Hole Site Of Grace, you’ll find the Ruins Of Unte.

From here, head southwest into the nearby ruins and go up the stairs.

As it turns out, the bridge isn’t broken; it’s just invisible.

Part of the Elden Ring: Shadow Of The Erdtree map, with the locations of the three Altars Of Light And Dark highlighted in yellow, along with the paths required to get there.

You’ll get a prompt that reads: “Raise the Stone-Sheathed Sword to the light?”.

Click “YES”, and the Stone-Sheathed Sword will transform into the Sword Of Light.

The player in Elden Ring: Shadow Of The Erdtree makes their way through the Fog Rift Catacombs, with a yellow arrow pointing towards the location of the hidden Altar.

The player in Elden Ring: Shadow Of The Erdtree makes their way through the Fog Rift Catacombs, with a yellow arrow pointing towards the location of the hidden Altar.

The player in Elden Ring: Shadow Of The Erdtree makes their way through the Fog Rift Catacombs, with a yellow arrow pointing towards the location of the hidden Altar.

The player in Elden Ring: Shadow Of The Erdtree makes their way through the Fog Rift Catacombs, with a yellow arrow pointing towards the location of the hidden Altar.

The player in Elden Ring: Shadow Of The Erdtree makes their way through the Fog Rift Catacombs, with a yellow arrow pointing towards the location of the hidden Altar.

The player in Elden Ring: Shadow Of The Erdtree makes their way through the Fog Rift Catacombs, with a yellow arrow pointing towards the location of the hidden Altar.

The player in Elden Ring: Shadow Of The Erdtree makes their way through the Fog Rift Catacombs, with a yellow arrow pointing towards the location of the hidden Altar.

The player in Elden Ring: Shadow Of The Erdtree makes their way through the Fog Rift Catacombs, with a yellow arrow pointing towards the location of the hidden Altar.

The player in Elden Ring: Shadow Of The Erdtree makes their way through the Fog Rift Catacombs, with a yellow arrow pointing towards the location of the hidden Altar.

The player in Elden Ring: Shadow Of The Erdtree makes their way through the Fog Rift Catacombs, with a yellow arrow pointing towards the location of the hidden Altar.

The player in Elden Ring: Shadow Of The Erdtree stands in front of the entrance to the Specimen Storehouse. A yellow arrows points in the direction of the path to the Castle Watering Hole.

The player in Elden Ring: Shadow Of The Erdtree stands in front of a ladder down to the Castle Watering Hole in Shadow Keep.

The player in Elden Ring: Shadow Of The Erdtree descends a ladder next to a waterfall in Shadow Keep. A yellow arrows points to a hidden doorway through the waterfall.

The player in Elden Ring: Shadow Of The Erdtree stands in front of a painting in Shadow Keep. A yellow arrow points towards a hidden doorway on the right-hand side wall.

The player in Elden Ring: Shadow Of The Erdtree stands in front of a coffin at the top of a waterfall below Shadow Keep.

The player in Elden Ring: Shadow Of The Erdtree stands next to the Castle Watering Hole Site Of Grace. The Ruins Of Unte stand before them in the background.

The player in Elden Ring: Shadow Of The Erdtree rides their horse past a Site Of Grace in Rauh Ancient Ruins.

The player in Elden Ring: Shadow Of The Erdtree rides their horse through an indoor area of Rauh Ancient Ruins.

The player in Elden Ring: Shadow Of The Erdtree rides their horse through a garden defended by two Hornsent Warriors in Rauh Ancient Ruins.

The player in Elden Ring: Shadow Of The Erdtree rides their horse through an indoor area of Rauh Ancient Ruins covered in rot.

The player in Elden Ring: Shadow Of The Erdtree rides their horse through an indoor area of Rauh Ancient Ruins covered in rot.

The player in Elden Ring: Shadow Of The Erdtree rides their horse towards an invisible bridge in Rauh Ancient Ruins.

The player in Elden Ring: Shadow Of The Erdtree rides their horse along an invisible bridge in Rauh Ancient Ruins.

The player in Elden Ring: Shadow Of The Erdtree approaches an Altar Of Light And Dark in Rauh Ancient Ruins.

The player in Elden Ring: Shadow Of The Erdtree uses an Altar Of Light And Dark in the Ruins Of Unte to transform the Stone-Sheathed Sword into the Sword Of Light.

The player in Elden Ring: Shadow Of The Erdtree uses an Altar Of Light And Dark in the Fog Rift Catacombs to transform the Sword Of Light into the Sword Of Darkness.