At any other time the dog would have been upon him in an instant, barking and leaping to the shoulder. And even now he got up, though heavily and awkwardly, to his feet. He started to run, wagging his tail more briskly. He collided first with a chair, and then ran straight into a table. Smoke trotted close at his side, trying his very best to guide him. But it was useless. Dr. Silence had to lift him up into his own arms and carry him like a baby. For he was blind.