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 stand where he was until he could reach the stable. He went down the stairs two steps at a time and fairly ran into the stable. Yes, the mysterious hand had left several generous pieces of carrot in the manger, but what had been the object? Palo'mine was very fond of carrots, but there was no one who had ever fed him carrots before.

Then a dark thought flashed into Halsey's mind. Was some one trying to poison Palo'mine? At the thought his blood fairly boiled. But he would wait and see. He would not be suspicious until there was good ground for suspicion.

An hour later when he showed McBride the pieces of carrot, the jockey broke open one of them and they discovered it contained a fine, white powder.

"What's that?" cried Halsey, excitedly.

"Arsenic," replied the jockey, gravely.

So after that either Halsey himself, or a trusted college chum kept watch over the horse.

One afternoon just as he had returned