Macha's Curse is an expansion by Zarista Games. It's intended for level 40 players.
The great wizard Cathbad has summoned you to the Red Branch Knights' Castle in the kingdom of Ulidia.
Queen Maeve of Connacht has invaded Ulidia in search of the magical Brown Bull of Cooley. Her troops have been met by the famous Knights of the Red Branch, led by their hero Cuchulainn.
This magical country needs your help. Equip your best gear. You've been chosen to be the Defender of Ulidia.
Thanks ToddMcF2002 for bringing this up in our forums.