"Sandman: Overture" is a graphic novel written by Neil Gaiman that serves as a prequel to the acclaimed Sandman series. It explores the origins of Dream, one of the Endless, as he embarks on a journey to reclaim his lost power and confront the consequences of his actions. The story delves into themes of responsibility, identity, and the nature of dreams. The artwork in "Sandman: Overture" is illustrated by J.H. Williams III, known for his intricate and visually stunning style. The graphic novel features a blend of fantasy and mythology, showcasing various characters from the Sandman universe, including Death and Lucifer. It enriches the lore of the series while providing a captivating narrative.