I watched him disappear into the ground fog ahead.

The tunnel curved slightly, the single chain of lights ahead disappearing.

He pushed past me and disappeared into the leafy wilderness ahead at a run.

He didn't so much see the aircraft, but saw something ahead disappear.

Thirty seconds later the flitter ahead disappeared in the distance.

The sergeant slowed the car and let the backup disappear ahead into the darkness.

I heard him shout something, but could not make out the words, before he disappeared into the clouds ahead.

I slowed to a stop and watched the lights of the car ahead disappear.

The road, already chewed up by countless feet, disappeared into water ahead.

A vast room stretched before him, disappearing in its own dimness both ahead and above.