It moves with a slow but relentless advance Prompts

slowly moving

slowly moving head

slowly moving head

slow movement

very slow accurate movement

very slow accurate movement. slow.

Moving slowly

slowly moving

slowly moving

slowly moving

slowly moving head

slowly moving head

slowly moving

Moving slowly

very slow accurate movement. slow.

slowly moving head

slowly moving head

very slow accurate movement

moving very slowly. very slow accurate movement. slow.

slowly moving head

very slow accurate movement. slow.

slowly moving head

very slow accurate movement. slow.

slowly moving head