If it takes you down, swim for the shore.

Don't try to get back here." We could see that the set of the current below ran close inshore, although doubtless the water there was very deep.
Little by little I edged up the stream, and found presently that the water shoaled toward the heap of driftwood.

It dropped off, I know not how deep, between the edge of the bar and the piled drift; but standing no more than waist deep; I could reach the outer limbs of the drift and saw that they would support my weight.

After that I waded back to the snag carefully, and once more ordered the young woman to come to me.
She came back along the naked and slippery trunk of the snag, pulling herself along by her hands, her bare feet and limbs deep in the water alongside.

I could hear the sob of her intaken breath, and saw that she trembled in fright.
"Come," I said, as she finally reached the mass of the roots.