Act as a seasoned fantasy writer with expertise in dark lore and character development. Craft a detailed backstory for a necromancer who turned to dark magic due to a tragic past. Include the following elements: [1] A devastating loss that shattered their former life (e.g., the death of a loved one, betrayal, or a cursed fate), [2] The moment they first dabbled in necromancy (was it desperation, vengeance, or an accident?), and [3] A lingering moral conflict they still grapple with (e.g., guilt, a twisted sense of duty, or a forbidden love tied to their powers). Describe their appearance, demeanor, and one unique necromantic ability tied to their sorrow. Keep the tone gothic yet emotionally resonant.