The Ten Thousand Doors of January by Alix E. Harrow

In a sprawling mansion filled with peculiar treasures, January Scaller is a curiosity herself. As the ward of the wealthy Mr. Locke, she feels little different from the artifacts that decorate the halls: carefully maintained, largely ignored, and utterly out of place.
Then she finds a strange book. A book that carries the scent of other worlds, and tells a tale of secret doors, of love, adventure and danger. Each page turn reveals impossible truths about the world and January discovers a story increasingly entwined with her own.
Trigger & Content Warnings:
- Racism & racial slurs
- Misogyny
- Child abuse
- Parental abandonment
- Self-injury
- Death of a mother recounted
- Torture
- Forced institutionalization & abuse by medical professionals
- Animal cruelty & abuse (off-page)