Strange Apparitions

 is a Minor Quest in Outward, which the player can receive at the Spire of Light in Hallowed Marsh.

Walkthrough
After pulling all the levers at the Spire of Light, a Strange Apparition will appear on the bridge outside the Spire and initiate the quest.
 * 1) The first location is outside the front entrance of the Spire of Light. Every location hereafter is marked by one or two unlit lamp posts.
 * 2) The second location is a tombstone located on an island just north of the Spire Of light.
 * 3) * Requires the Jade-Lich Idol in Ziggurat Passage in place to spawn metal bridges across the islands, giving you a way over.
 * 4) * The Apparition is on the island between the two bridges, a few paces to the north on a cliff.
 * 5) The third location is north, north-west of the Spire. The silhouette is easily visible from the Spire's front entrance. Follow the road north and you'll see an unlit lamp post on the left. Cross the two land bridges and you'll find the next grave.
 * 6) The fourth location is on the path west of the Spire on an outcropping. The ghost should be visible on approach, but it will be occluded by the Steakosaur's Burrow as you make your way around to it. Turn right and head north when you see the Abandoned Ziggurat. You will encounter unlit lamp posts followed by the next grave.
 * 7) The final location is south, south-west from the Spire's entrance on an island with two more unlit lamp posts. Unlike every other location, this one is located at water-level. Follow the coast behind the Abandoned Ziggurat going North East. A set of broken boardwalks over the rancid water will lead you to this location, right past the Immaculate's Camp.
 * 8) Speak to the final apparition to receive your prize.

Outcomes

 * 1x Light Mender's Backpack