"Mr. John Diamond, Lexington, Pa.: If you wish cruise in down East waters, join me Monday next at American Hotel, Boston. Have purchased yacht. Hodge and Browning will be in party. Great sport anticipated. "Merriwell." Jack Diamond was reclining in a hammock suspended in the shade of an artificial arbor when this message from Frank Merriwell was handed to him by a boy. He tore open the envelope and read it, his eyes beginning to sparkle and a flush coming to his handsome, aristocratic face.