Shadowmere is a horse in The Elder Scrolls V: Skyrim, originally owned by Lucien Lachance. Astrid lets the Dragonborn borrow Shadowmere to travel to the Dawnstar Sanctuary for the quest The Cure for Madness. She then gives him to the Dragonborn as a reward for completing the quest. Shadowmere spawns from a pool outside the Falkreath Sanctuary, follows the Dragonborn when they Fast Travel, and can provide aid during combat.