The moon had set and dawn was just lightening the eastern sky.

Dawn had just lightened the gray of the eastern horizon.

Dawn had lightened the sky when she arrived at a final, irrevocable decision.

By the time they reached their encampment, dawn lightened the eastern sky.

Usually we left Verity's tower before the true dawn lightened the sky.

Cormac reached the cabin just as dawn was lightening the sky.

Dawn now lightened it from its impenetrable black to a smoky gray.

She woke me at 5:45, as dawn was lightening the lean-to.

Dawn was lightening the western sky when I exited the repository.

He lay there, watching dawn lighten the window, and wondered if he dared sleep a little longer.