Read the extract given below and answer the question that follow:
One day an accident befell him. I put down poison (barium carbonate) to kill the rats and mice that had got into my library. Bruno entered the library as he often did, and he ate some of the poison. Paralysis set into the extent that he could not stand on his feet. But he dragged himself on his stumps to my wife, who called me. I guessed what had happened. Off I rushed in the car to the vet’s residence. A case of poisoning! Tame Bear—barium carbonate—what to do?
Q. Who had dragged himself on his stumps to narrator’s wife?