The Spectral Sentinels are the anguished remnants of souls who perished on or near Stonewatch Island. For three centuries, while Arch Lich Ariel endured imprisonment, these spirits found no peace. The island's oppressive demonic aura ensnared them, preventing their passage into the afterlife.

Instead of oblivion, their very essences were captured by Ariel's vast and malevolent magic. Over hundreds of years, these trapped souls were steeped in her overwhelming rage and profound sorrow. Through this prolonged corruption, they were warped and forged into incorporeal extensions of her own twisted will.

Now that Ariel's seal has been shattered, these spectral entities have been unleashed. She dispatches her Sentinels across the territories surrounding Emberfield, where they act as her covert spies and formidable enforcers. They are the chilling harbingers of her burgeoning undead kingdom.

Serving as the Arch Lich's very eyes and ears, they meticulously carry out her vengeful schemes. Wherever these spectral beings drift, they spread a palpable aura of dread, signifying Ariel's ominous return. Despite their tormented origins, their current status is remarkably healthy, making them potent instruments of her will.