"Will you allow me to look at it?" said Ellersby, stretching out his hand.

"Certainly," replied the detective, and rising to his feet, he walked across to Ellersby to give him the dagger. Unluckily, however, just as he was handing it to him he stepped on Pickles, who with a growl of rage made a bite at his leg. In the sudden start Dowker let go the dagger, which fell upon Pickles' back, inflicting a slight wound.

The detective gave a yell as the bulldog gripped him, but Ellersby pulled Pickles off, and Dowker, hobbling to a chair, sat down to nurse his wounded leg. It was not much hurt, however, as Pickles had got a mouthful of trousers instead of flesh.

Alarmed as Dowker had been by the accident, he was not more alarmed than Ellersby, who sprang to his feet with an oath and rang the bell sharply.

"Damn it!" he said furiously, "if that dagger is poisoned the dog will die! How could you be such a fool?"

"You'd be the same, sir, if a devil of a dog bit you," said Dowker sulkily, not at all displeased at having the question of the dagger tested at once. "I'm very sorry."

"Sorry be hanged!" said Ellersby savagely. "I wouldn't lose that dog for a hundred pounds. Here," to the waiter that entered, "send for a doctor at once--don't lose time, confound you!" at which the astonished waiter vanished promptly.

Meanwhile all this time Pickles was lying down trying to lick his wound, and evidently wondering what all the fuss was about. Dowker watched him intently, and in a short time saw the dog was becoming drowsy. Ellersby picked up the dagger and was about to hurl it furiously back to Dowker, when the detective jumped up in alarm.

"For God's sake, don't!" he cried; "I believe it is poisoned--look!"

Ellersby looked, and saw Pickles trying to rise to his feet. He evidently knew something was wrong with him, for he commenced to whine, and a glaze came over his eyes. His master knelt down beside him and dried the blood off the wound with his handkerchief, but it was too late. The dog opened his jaws once or twice, tried to rise to his feet, staggered, and fell over on his side, to all appearances dead. On seeing this, Ellersby jumped to his feet and began to rage.