"Oh," she said, "I forgot! You were thinking--" The professor's smile smote her.
"Her eyes were blue like that!" he said.
Desire tripped over a fallen branch.

And, when she recovered herself, "Purple, do you mean ?" she asked.

"I have always thought purple eyes were a myth." "Now you are making fun," said the professor after a reproachful pause.
"How do you mean--making fun ?" "'I never saw a purple cow,'" quoted he patiently.
"Oh, I wasn't!" cried Desire in distress.
Spence begged her pardon.

But he did it abstractedly.

His eyes were still upon the sky.
"You'll fall over that root," prophesied she grimly.