Yarrow: An Autumn Tale is an urban fantasy novel by Charles de Lint, set in 1980s Ottawa. The plot concerns a fantasy writer who has a secret source of inspiration: when she dreams, she visits a world where magic is real. Unknown to her, a supernatural predator who feeds on dreams is feeding on her and destroying that world.
References
External links Author's web site (contains excerpts from book reviews) Internet Speculative Fiction Fanbase (list of reviews)