Beyond the Barrier
Author: Damon Knight
 
He reached for Churan's throat and his hands closed on air . . .
yet the alien had not moved. With a chill of terror, Naismith realized that his arm had passed completely through the ugly, green-skinned body.
The alien's laughter swelled out, mailicous and mocking. Behind him Lall's voice said, "A nice try. But not good enough."
 
MACFADDEN BOOKS 2nd PRINTING FEBRUARY 1970
ISBN: 0520004440