The arm dropped rather suddenly, and the white form vanished.

As the tall form vanished through the opening, it seemed to melt away.

Supposedly, if a human hears the sound and looks outside, the bird's form will suddenly vanish.

At times, his tall form vanished in a twinkling.

As he dug down, Beneto found that the green priest's physical form had vanished completely.

As his hands left the sphere, the form vanished and the sphere again became translucent.

The small white form on the screen abruptly vanished.

He switched off his goggles, and the spectral form vanished.

He blinked once, and then his form vanished.

Then the tall, dark form vanished, a door closed, and all was still.