But he recovered a little as he went.

He suffered badly.

He had killed his brother when a boy, and was set apart, like Cain.
They found Birkin and Ursula sitting together by the boats, talking and laughing.

Birkin had been teasing Ursula.
'Do you smell this little marsh ?' he said, sniffing the air.

He was very sensitive to scents, and quick in understanding them.
'It's rather nice,' she said.
'No,' he replied, 'alarming.' 'Why alarming ?' she laughed.
'It seethes and seethes, a river of darkness,' he said, 'putting forth lilies and snakes, and the ignis fatuus, and rolling all the time onward.