The novel is set in a graveyard over the course of a single night and is narrated by a dazzling chorus of voices. The story is centered around the death of President Lincoln's 11-year-old son Willie, who resides in the Bardo, a transitional state between life and rebirth in Tibetan tradition. As Willie interacts with the other spirits stuck in this realm, his father visits the crypt to mourn, causing a struggle among the ghosts over the boy's soul. The narrative explores themes of grief, the impermanence of life, and the unresolved issues that keep us from moving on.

The book follows the story of a young woman in 18th-century France who, desperate to escape an arranged marriage and yearning for freedom, makes a Faustian bargain with a mysterious god-like figure to live forever without being remembered by anyone she meets. Her immortality becomes a curse as she moves through the centuries, leaving no mark on the world until, 300 years later, she stumbles upon a young man in a bookstore who, to her shock, remembers her name. This encounter unfolds into a tale of love, memory, and the intrinsic value of leaving one's mark on the world.

In this enchanting novel, a young girl named January Scaller discovers a mysterious book that reveals a world of secret doorways leading to other realms, each unique and wondrous. As she delves deeper into its pages, she learns about her own family's connections to these other worlds and their role in guarding these portals. Set against the backdrop of the early 1900s, the story weaves a tale of adventure, self-discovery, and the power of words and stories to open doors to new possibilities. January must navigate a complex web of historical societies, hidden powers, and her own identity as she seeks to unlock the truth of her past and shape her destiny.