Once more he clove the icy gulf and plunged still deeper.

Seeing that he did not believe her, Juanna plunged still deeper into the mire.

Stafford was plunged still more inextricably into doubt by the accounts from Longlee in Madrid.

To conquer this new grief, he plunged still more deeply into work; but he did not find his former animation and energy.

I hurried along the trail, occasionally looking back over my shoulder as I plunged still deeper into the innermost reaches of Soakes's Lonesome.