She could not understand him; for, as long as she could remember, his grave looks had always brightened at anything that had brought gladness to her or to her mother. Besides, her success with the Roman would be to the advantage of Diodoros, and the freedman was devoted to him. Every now and then she perceived that his eye rested on her with a compassionate expression, and when she inquired whether he were anxious about the sufferer, he gave her some evasive answer, quite unlike his usual decisive speech. This added to her alarm. At last his dissatisfied and unsatisfactory replies vexed the usually patient girl, and she told him so; for she could not suspect how painfully her triumph in her hasty deed jarred on her truth-loving friend. He knew that it was not to the great Galenus, but to the wealthy Serenus Samonicus, that she had spoken; for the physician's noble and thoughtful features were familiar to him from medals, statues, and busts. He had seen Samonicus, too, at Antioch, and held his medical lore, as expressed in verse, very cheap. How worthless would this man's help be! In spite of his promise, Diodoros would after all have to be conveyed to the Serapeum; and yet Andreas could not bear to crush his darling's hopes. He had hitherto known her as a patient, dutiful child; to-day he had seen with what unhesitating determination she could carry out a purpose; and he feared that, if he told her the truth, she would at once make her way into Caesar's quarters, in defiance of every obstacle, to crave the assistance of the true Galen. He must leave her in error, and yet he could not bear to do so, for there was no art in which he was so inexpert as that of deceit. How hard it was to find the right answer, when she asked him whether he did not hope everything from the great physician's intervention, or when she inquired what were the works to which Galen owed his chief fame! As they came near to the landing-stage whence the ferry started, she wanted to know how old he should suppose the Roman leech to be; and again he avoided answering, for Galen was above eighty, and Serenus scarcely seventy. She looked up at him with large, mournful eyes, saying, "Have I offended you, or is there something you are concealing from me?" "What could you do to offend me?" he replied; "life is full of sorrows, my child. You must learn to have patience." "Patience!" echoed Melissa, sadly. "That is the only knowledge I have ever mastered. When my father is more sullen than you are, for a week at a time, I scarcely heed it. But when you look like that, Andreas, it is not without cause, and that is why I am anxious." "One we love is very sick, child," he said, soothingly; but she was not to be put off so, and exclaimed with conviction: