"Ah, Miss Thurston, how glad I am we found the garden first!" Peter cried. "This is the famous Mary Washington rose, which Washington planted here in his garden, and named in honor of his mother. Wait here until I find the gardener. I am going to make him let us have these two tiny rose-buds."
"How nice Peter Dillon really is," Bab thought. "Ruth was mistaken in warning me against him. Of course, he does not show on the surface what he actually feels. But perhaps I shall find out he is a finer fellow than we think he is. Mr. Hamlin says Harriet is wrong in believing Peter is never in earnest about anything."
"It's all right, Miss Thurston," called Peter, returning in a few minutes with his eyes shining. "The gardener says we may have the roses." The young fellow dropped down on his knees before the rose bush without a bit of affectation or self-consciousness. He skilfully cut the two half faded rose-buds from the stalk and handed one to Barbara.
"Keep this, Miss Thurston," he said earnestly. "And if ever you should wish me to do you a favor, just send the flower to me and I shall perform whatever task you set me to do to the best of my skill." Peter looked at his own rose. "May I keep my rose-bud for the same purpose?" he begged quietly. "Perhaps I shall send my flower to you some day and ask you to do me a service. Will you do it for me?"
"Yes, Mr. Dillon, I will do you any favor that I can," Bab returned steadily. "But I don't make rash promises in the dark. And I have very little opportunity to do people favors. You make me think of the newspaper girl, Marjorie Moore. She tried to force me into a promise without letting me know what she wanted, the first day I saw her. Does everyone try to get some one to do something for him in Washington?"
At the mention of Marjorie Moore's name the change in Peter Dillon's face was so startling that Barbara was startled. Just now he did not look in the least like an Irishman. His lips tightened into a fine, cruel line, his eyes grew almost black and had a queer, Chinese slant to them. It suddenly dawned on Barbara, that Russians have Asiatic blood in their veins and are often more like Oriental people than they are like those of the western world.
But Peter only said carelessly, after he had regained control of his face: "Miss Moore doesn't like me; and frankly, I don't like her. She told you she did society work for her newspaper. She does a great deal more. She is constantly watching at the legations to see if she can spy on any of their secret information. It is not good form to warn one girl against another. But if I were you, Miss Thurston, I would take with a grain of salt any information that Miss Moore might give you."
Barbara answered quietly: "Oh, I don't suppose Miss Moore will tell me any of her secrets. She does not come to Mr. Hamlin's except on business. Harriet does not like her."
"Good for Harriet!" Peter muttered to himself. "It may be Harriet, after all!"
"Barbara Thurston, you and Peter come along this minute," Harriet ordered unexpectedly. "Don't you know we shall be locked up in Mt. Vernon if we stay here much longer. Ruth's automobile is already filled and she is waiting to start. You and Peter are to get into Mr. Meyers' car with me. We have another hour before sunset. We are going to motor along the river and have our supper at an inn a few miles from here."