There was no reason why her white-rose face with its strange blue eyes and its smile-curved lips should float about in the darkness of Mrs.Sykes' best room.

Yet there it was.

It was the eyes, perhaps.
The doctor admitted that they were peculiar eyes, startlingly blue.

Dark blue in the shade of the lashes, flashing out light blue fire when the lashes lifted.

But Mrs.Sykes' boarder did not want to think about eyes.
He wanted to go to sleep.