under cover

I passed off the letter as his wife's, to the Vernons, and when I write to him it must be under cover to you.

Heman stole one glance at her, under cover of the saluting voices.

Under cover of the music her voice was inaudible to any one else.

Engle is in there, and O'Connor and a lot more that have been under cover.

Next morning, under cover of a thick fog, we besieged the city.

After this it was resolved that they must again separate their quarters and get under cover in the villages.

Under cover of the night we recrossed the Rappahannock in safety.

And under cover of this confusion we would try and release Snap.

The other passengers were under cover, and the decks seemed to be deserted.

Under cover of his uncle's arrival Reuben escaped into the church.