Every Heart a Doorway is a fantasy novella by American writer Seanan McGuire, the first in the Wayward Children series.

As a child, Nancy found a doorway that led her to the land of the dead, based on the story of Persephone and Hades.

[3] Booklist's Erin Downey Howerton wrote, "This amazing fantasy pierces the shimmering veil of childhood imagination by reminding adult readers that their own doorways still exist deep in the chambers of their all-too-human hearts.

They noted that the "characters are strange and charming" and highlighted how "McGuire [...] puts her own inimitable spin on portal fantasy, adding horror elements to the mix".

[4] Likewise, School Library Journal's Gretchen Crowley noted that "the characters are well drawn, and their feelings about their impossible situation are believable.