This appears to be the entrance chamber to the Battlegrounds. Runes

of an ancient and arcane sort have been inscribed into the polished

stone walls, emitting a soft red glow. Three differently coloured

portals stand erect in the center of the room - Crimson, Golden, and

Ebony. A large sign on the northernmost wall reads "Entrance to the

Battleground of the Gods - Enter the colour of your choice, and may

victory be yours."