SOLVED. Hiding hallucinations of Tenebrae creature [s]

[[deleted user]]

My friend posted this on Facebook and I wonder if any of you can help him: "I once read a book years ago in which a troubled woman who hid her mental illness from her peers had visions of and conversations with a strange creature who was constantly falling whilst simultaneously burning. She referred to him as Tenebrae. Does anyone else remember this? Or know the name of the book? I thank you x"

[Andria]

Sounds like I Never Promised You a Rose Garden

In the book, Anterrabae, or the Falling God, is the most powerful being in the Kingdom of Yr, a world that the MC created as a defense against reality.

[Kate]

Talita-is this solved? I'd like to shelve it. I read this book when I was in high school -- ages ago!