A white circle appeared in the centre of the screen, shrank and then grew bigger, like a camera aperture.

He saw the watch-fires dwindle, and the circles of their orange light shrink in upon them.

The circle would grow in size, then shrink back to a point and disappear again.

As the circle shrank, Conor gave wild and contradictory orders.

The circle of light behind them shrank, then abruptly vanished as the tunnel veered to the right.

Now the circle shrank to a dot and the flames of the fire returned to normal.

The circle will shrink, and eventually collapse down to a point.

By that time, the inner circle of people which Hitler trusted was rapidly shrinking.

In addition, their circle of friends shrank by an average of 2.7 people.

The circle shrinks as Roughnecks fall back and board the boat.