The Unspeakable Betrothal

A woman uncovers a window sealed since her childhood begins to regress and hear the same voices she heard when she was eight years old; voices that want to take her away.

"Avis knew she wasn't really as sick as Dr. Clegg had said. She was merely bored with living. The death impluse perhaps; then again, it might have been nothing more than her distaste for clever young men who persisted in addressing her as "O rara Avis."

Avon Fantasy Reader No. 9 (1948)
The Living Demons (1967)
Such Stuff As Screams Are Made Of (1978)
Mysteries of the Worm (1981 and 1993)
Complete Stories of Robert Bloch -- V 1: Final Reckonings (1990)