He dropped out of sight a little over a year ago.

I guess it's the way they dropped out of sight.

The third had dropped out of sight seven years before.

The building dropped out of sight a moment before it hit the ground.

He had dropped out of sight a month or two ago.

But she had dropped out of sight for a long period.

A few months later he dropped out of sight again.

The moment she killed one man, the other would drop to the floor out of sight.

Then came 9/11, and the issue dropped out of sight.

"That wall section dropped out of sight as I came in the door."