Clifford D. Simak

OUR COPY HAS THE SAME COVER AS STOCK PHOTO SHOWN. NAME WRITTEN INSIDE FRONT COVER. BOOKSTORE STAMP ON FIRST PAGE. STICKER RESIDUE ON FRONT COVER. MINOR CREASING AND EDGE WEAR ON COVERS/SPINE. AGE RELATED TANNING INSIDE COVERS AND ON PAGES. MUSTY ODOR.

A mysterious invisible barrier suddenly encloses a small, out-of-the-way American town. It's been put there by a galactic intelligence intent on imposing harmony and cooperation on the different peoples of the universe. But to the inhabitants, the barrier evokes stark terror.