He took several steps toward the oak, and when he got close enough, the outline of the twins grew clearer, more solid.
The outline grew, then to my surprise, it shrank and disappeared as the door shut again.
The one on the left began to shake violently; his outline grew hazy and a scream rang out from his open mouth.
Her outline grew insubstantial, then a cloud of shadow or smoke seemed to appear where she stood.
Unseen hands dutifully did as they were told and the battleship's outline grew smaller as the camera increased the image area.
His outline grew less distinct, and by the time I reached the place where he had been standing he had vanished entirely.
But, as its outline grew each moment more distinct, gradually her fears departed.
She saw him shimmer, his outline growing hazy and she shook her head, passed a hand across her eyes.
He gave me a determined, stern-jawed look and pushed off again, managing to stay upright as his outline grew dim against the dark background.