Before he could say a word, though, a creature stepped out of the far wall.

Over his shoulder, Adam saw the creatures step on to the pier and begin to move in their direction.

The creature laughed again and stepped back out of sight.

Then the effect was over as the creature stepped back from the forcefield.

But before they could decide what to do, a creature stepped into the clearing.

The two creatures stepped forward and dragged him into the opening.

The creature stepped back, then indicated where more dirt should go.

He tensed as a single creature stepped slowly forward to face him.

The creature stepped out of the shadows and walked almost up to her face.

The creature stepped across the trench from which it had risen.