He turned the pages over with a noisy flutter, but made no answer.
The knock was repeated, and Bessie's "Joe, dear" came to his ears.
"What do you want ?" he demanded.

But before she could answer he hurried on: "No admittance.

I 'm busy." "I came to see if I could help you," she pleaded.

"I 'm all done, and I thought--" "Of course you 're all done!" he shouted.

"You always are!" He held his head in both his hands to keep his eyes on the book.