Iron may cause your stools to turn black, an effect that is not harmful. If your doctor has prescribed this drug, remember that he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.
In the Reeking Cave, visited during the quest Diplomatic Immunity, there is a Dark Elf corpse. In Darkshade, southwest of Windhelm, the body of a dead female Dark Elf can be found at the back of the cave near the bottom of the ramp that leads to a chest. A permanent corpse of a Dark Elf can be found at Evergreen Grove. At The Ritual Stone there is normally a Dark Elf Necromancer who can be killed and then have her blood harvested. Drelas Cottage, on the opposite side of the mountain to Morthal, contains a hostile Dark Elf mage named Drelas.
Damphall Mine is a dungeon in Skyrim: Dragonborn. Damphall Mine is found on the Western coast of Solstheim. Approach and enter the mine to begin your exploration of it. Expect to encounter Reavers outside the mine guarding it. They have a base inside. Head to the South down the slope and into the first cavern of this mine. There are a few Reavers just around a wooden wall. Defeat them and head to the South.