I was looking at this," and he held up the little book.
"Oh, that ?" said Hazlewood, turning away with disappointment.
"Yes, that," said Pettifer with a strange and thoughtful look at his brother-in-law.

"And I am not sure," he added slowly, "that in a short time you will not find it the more important publication of the two." He laid the book down and in his turn he moved away towards the billiard-table.

Margaret Pettifer remained.

She had been struck by the curious deliberate words her husband had used.

Was this the hint for which she was looking out?
She took up the little book.