Celtic Queen is an expansion by Zarista Games. It's intended for level 45 characters.

Habren is Queen now, thanks to you. However, King Locrinus' brother Kamber has challenged her right to the throne.

Merlin holds the key to the future and would protect her but he's besieged by an opposing faction of wizards. He calls once more on your skill and daring, Heroic One. It's your mission to make order out of chaos and save the Queen.