Spook's Metal Letter

Spook's Metal Letter emerges as a pivotal artifact in Mistborn Era 1, revealed in The Hero of Ages as a cryptic message inscribed on metal that survives the world's cataclysmic end. Penned by the enigmatic scholar Sazed using Allomantic steel, it chronicles the Final Empire's downfall and foreshadows the new world's dawn under Preservation and Ruin's merged harmony. Its discovery by Spook symbolizes hope and continuity, bridging the destruction of the old era to the Cosmere's expansive future, with its imperishable nature ensuring its legacy endures across time.