Twice he fell, and twice he struggled up again.

One more effort--so.

The water was only up to his thighs now, and he was obliged to half carry his companion.
As he lifted her he felt a deadly sickness come over him, but still he staggered on, till at last they both fell of a heap upon a big flat rock, and for a while he remembered no more.
When he came to himself again it was to see Jess, who had recovered sooner than he had, standing over him and chafing his hands.

Indeed, as the sun was up he guessed that he must have lost his senses for some time.

He rose with difficulty and shook himself.