Lest Darkness Fall

From Author Wars - https://authorwars.com/publications/lest-darkness-fall-176611.html

Overview:

Title: Lest Darkness Fall
Author: L. Sprague de Camp
Year: 1941
Publisher: Henry Holt
Price: $2.50
Pages: ix+379
Binding: Hardcover
Type: Novel
Title Reference: Lest Darkness Fall
Notes: "No statement of printing on copyright page." - Currey Deckle-edged pages. "Decorations" credited on the title page are small illustrations at the top of each chapter. Cover art credited on the front jacket flap. The "Author's Note" discusses what drew the author to write this story.