The Unseen

The Unseen is a powerful demon that a group of Portal Wraiths attempt to summon. The Oddbodies discovered this attempt, but no one else believed the existence of the Unseen so they moved out alone to prevent The Unseen's appearance. The player meets up with the Oddbodies in order to complete the quest The Last Patrol and prevent the Unseen from being summoned, so it is never seen.