What reason?

KIKI-THE-DEMURE

Because of the fever.

TOBY-DOG, (_carried away by his love_)

Her fever smells better than other peoples' good health!
KIKI-THE-DEMURE, (_shrugging his shoulders_)

And they talk of a dog's scent! Truly the convictions of Two-Paws are
based upon childish fables. You know of course that fever--

TOBY-DOG, (_in a low tone_)

Makes one afraid, yes.

KIKI-THE-DEMURE, (_in a low tone_)

Makes one afraid, gives one cold shivers down one's back, distaste for
everything and uneasiness all over. One hesitates on the threshold of a
room where there is fever, searching fearfully some hidden thing.... She
was in bed and burning hot. I looked at her a long time, ready to run,
saying to myself: "Who can be with her there--behind the curtains--who
is it stifles and torments her and makes her moan in her sleep?"
TOBY-DOG, (_frightened retrospectively_)

There wasn't anyone, was there?