The Shadow's words came in an ominous whisper.

Her voice fell to an ominous whisper.

Varys has heard ominous whispers from the west.

I pretended I didn't hear the ominous whisper.

And far away a little ominous whisper.

He dropped his voice to an ominous whisper.

Though the rain had passed hours ago, the trees dripped, creating an ominous whisper among the freshly fallen autumn leaves.

The Shadow spoke in an ominous whisper.

He heard a whisper - a strange, ominous whisper that seemed to creep from nowhere.

"Plus an additional thousand penalty fee for each insult," the captain added in an ominous whisper.