At rehearsals their quarrels were rather fiercer than is usual between the principal tenor and the prima donna. "At that time I could hardly endure him," says Mme. Legat. "We quarrelled terribly. He seemed so unreasonably insistent on certain details at the rehearsals that I considered him unbearable, insupportable." But Mme. Legat confesses that this feeling did not survive the triumph which they won together. Shortly afterward, when he departed to fill an engagement with the Imperial Opera in Berlin and she was summoned back to Russia, they parted as friends. If they had developed a stronger feeling for each other, neither was aware of it. They went about their separate opera affairs. The beginning of the European war found Arensen still an opera favorite in Berlin and Vienna. Mme. Legat was spending the Summer at Nice, after two years of distinguished success in Russia, upon which the Czar himself placed the imperial stamp. She wished to return at once to Petrograd, but hearing from her mother that the latter would come to her, she remained at Nice until the Russian Hospital at Monte Carlo was founded, when both became nurses there. And, month after month, while the celebrated opera soprano was nursing wounded soldiers, not knowing nor caring about anything else, Arensen, the tenor with whom she had quarrelled so fiercely on the stage of La Scala, was virtually a prisoner of war in Germany. For ten days after the beginning of hostilities he continued his successful appearances in Berlin--and then, without warning, the blow fell. Some said that rival singers, native Germans, directed suspicion against him, as though inquiring: "Russia is our enemy. What is this Russian doing here?" One night German soldiers arrested him at the opera house and he was interned as an enemy alien. He appealed to the Government for release, pointing out that he was above the fighting age--as he then was, which was before the Russian army age limit was raised--and Germany would lose nothing by letting him go home. The suggestion fell upon deaf ears. His subsequent efforts to obtain his release the tenor himself relates: "I was a prisoner for twenty-four hours in the Hausvogter Gefangniss, which is the delightful name the Berlinese give to the institution where they intern aliens. I sent a letter to the Kaiser himself, before whom I have many times sung, asking my release. "It was not long before I received an answer to the letter, granting my request--a communication from the Kaiser. Of course, there were conditions. I was to go to America as soon as it was practicable for me to do so, anyhow, but that was not sufficient guarantee for the meticulous German war office.