Henry Kuttner, The Shadow on the Screen (1938)
“ Then another shadow leaped into existence beside him. It was barrel-shaped, gigantic, studded with blunt spikes, and capped by a round dark blob—the life-jewel. The shadow of the monster god! The man saw it. He turned. Stark horror sprang into his face, and at sight of that utterly ghastly and realistic expression a chill struck through me. This was almost too convincing. The man could not be merely acting. But, if he was, his acting was superb, and so was Keene's direction. The shadow on the wall stirred, and a thrill of movement shook it. ”
