The Strain in Havoc's Threshold is building an organic bridge made from the flesh and bone of living Exiles. The bridge will carry the Strain over the sea of exanite surrounding the Lightspire, and allow them to attack! Ashella Sunfell has asked you to rescue vulnerable Exiles before they can be absorbed into the Strain's bridge. This quest can only be completed when the "Siege of the Lightspire" public event is active.