Consciousness returns with the subtlety of a kick to the stomach. Confused by the sudden awakening, he tries to concentrate and remember why he is here.

There is something I have to do. What is it?

The memory is there - formless and insubstantial, it nags at him. If only he could clear his mind, it would be easy; but fatigue holds him down like a leaden blanket.

His head drops until it is resting on some cold, unyielding surface. For a moment, his thoughts are clear.

Yes! That's it!

Then his strength leaves him again. Oblivion returns. He lies still, until the next time.