Harriet Hamlin spent half an hour in the room with Mrs. Wilson before she came down to the breakfast table the next morning.

“It is all right, girls,” she announced promptly, as soon as the maid left the room. “Mrs. Wilson is going to have her breakfast in bed. She is a little upset by the happenings of last night. But she has explained everything to me. For some time, Mrs. Wilson has been trying to play a joke on Father, and last night she made another attempt. I promised her none of us would mention to him what had occurred. Will you give me your word, all of you, not to tell?”

“Certainly, Harriet,” Ruth agreed seriously. The other three “Automobile Girls” quietly nodded their heads.

“I don’t know that I quite approve of Mrs. Wilson’s method of practical joking,” Harriet went on. “She frightened all of us. But then, if no one had discovered her, no harm would have been done.”

Mollie and Grace gazed at Harriet, without trying to conceal their surprise, but Ruth and Bab only looked steadfastly at their plates.

“Father is so strict and good all the time, I just wish somebody would play a trick on him,” Harriet went on angrily. She was annoyed at the attitude of the “Automobile Girls,” and she was still smarting under the hurt of her father’s speech the night before. As long as her father had refused her money before she had even asked him for it, Harriet had decided that it would be worse than useless to appeal to him again. She was now waiting for disaster to break over her head.

“Mrs. Wilson rather blames you, Barbara,” Harriet continued. “She says she did not succeed in her joke, after all, because you came down stairs at the wrong time and foiled the whole thing. She could not find the silly old paper she needed. But do please be quiet as mice about the whole affair. Don’t mention it before the servants. Father will be home to-night. Will you girls mind excusing me for the day, and finding some way of amusing yourselves? I have promised Mrs. Wilson to go home with her.”

“Of course we can get along, Harriet,” Grace replied. “I hope you will have a good time.”

Bab made no answer to Harriet’s report of Mrs. Wilson’s attitude toward her. But she was convinced that Mrs. Wilson knew she had discovered the stolen paper and returned it to its rightful place.

The “Automobile Girls” did not see Harriet again that morning.

At noon a message was sent upstairs. Mr. William Hamlin had returned and wished to see his daughter at once. When he learned that Harriet was not at home, he immediately sent for Ruth.

“Ruth, I have come home sooner than I had planned,” he declared, “And I wish to have a talk with you. Now, please keep your self-control. Girls and women have such a fashion of flying into a rage at the first word one says, that it is perfectly impossible to have any reasonable conversation with them. I wish to talk with you quite quietly and calmly.”

“Very well, Uncle,” Ruth replied, meekly enough, though she was far from feeling meek. She could readily understand why Harriet had found it impossible to make a confidant of her father.

“I am glad you are so sensible, Ruth,” Mr. Hamlin went on. “For I have reason to believe that your friend, Barbara Thurston, has proved herself an undesirable guest, since her arrival in Washington, which I very much deplore. She is dishonorable, for she has secretly entered my study and been seen handling my papers, and she has contracted a debt; for I saw the check by means of which she returned the borrowed money to Mrs. Wilson. I cannot understand how you and your father have managed to be so deceived by the young woman.”

“Stop, Uncle William,” Ruth interrupted hotly. “I cannot, of course, tell you that the things which you say are untrue. But at least I have the right to say that I positively know you are wrong. I shall ask Barbara to come down to your study, at once, to deny these charges. Then we shall go home immediately.”

“There, Ruth, I expected it,” Mr. Hamlin answered testily. “Just as I said. You have gone off the handle at once. Of course your young friend may have some plausible explanation for her actions. But I will not be guilty of making any accusations against a guest in my own house under any circumstances. I have only mentioned these facts to you because I feel that it is my positive duty to warn you against this girl, whom you have chosen for your most intimate friend. It is impossible that I have been deceived in regard to her. I have positive proof of what I say, and I sadly fear she is a very headstrong and misguided girl.”

Ruth was already crying from anger, which made it hard for her to answer her uncle’s speech. “You certainly don’t object to my telling Barbara of your accusations, Uncle William?” Ruth demanded. “I think it is only fair to her.”

“Not while she is in my house. You are to tell her nothing,” Mr. Hamlin ordered. “When Miss Thurston leaves you may tell her whatever you wish. But I will not have a scene with her while she is staying here.”

Mr. Hamlin was a cold, selfish and arrogant man. He well deserved the blow to his pride that he was to receive later.

Ruth controlled herself in order to think deeply and quietly. Her father was wise in his trust in her. Ruth had excellent judgment and good sense. She was not particularly impressed by her uncle’s command. She felt that she had a perfect right to tell her friend of what she had been accused. Yet would it be a good idea? Barbara would be heart-broken, and nothing would induce her to remain in Mr. Hamlin’s house another hour after she learned his opinion of her. Ruth knew it would not be well for Bab to rush off home in sudden anger, leaving a false impression behind her. Barbara must stay in Mr. Hamlin’s house until he himself apologized to her.

Ruth did not dare to go back upstairs to the other girls immediately after her interview with her uncle. She knew her friends would recognize at once, from her red eyes and her excitement, that something was the matter. Yet Ruth longed for a confidant, and she meant to unburden herself to Grace as soon as she had the opportunity. To go upstairs now would reveal everything to Mollie and Barbara as well.

Ruth seized her coat and hat from a closet in the hall and rushed out into the street. She began walking as rapidly as she could, to let the fresh air cool the tumult of feeling that was surging within her. Ruth must have walked a mile before she determined what to do. Before she returned to Mr. Hamlin’s house, she found a telegraph office and went into it. She sent a telegram to her father in Chicago, which read:

“Come to Washington as soon as possible. Bab wrongly suspected. She is still in ignorance, but we need you.

“Ruth Stuart.”

Little did Ruth yet dream why these toils were being wound about unhappy Barbara. Mollie’s one act of weakness had involved her sister in a number of actions that did look wrong to an outsider. Yet the explanation of them was so simple, if Bab had only known it were best for her to tell the whole story! But Barbara was trying to shield Mollie, and Mollie did not dream that Bab would suffer any consequences from her foolish deed. So Bab’s peculiar proceedings since her arrival in Washington had indeed played well into the hands of her enemies. Mr. Hamlin’s mind had been poisoned against her. She had been seen to do several underhanded things, one following directly after the other. If a big game were being attempted, the reputation of Barbara Thurston was of little account. Besides Bab had already blocked several of the players in the game. Revenge could very well enter into the present scheme of things, and a girl who had no one to defend her might prove a useful tool. As a last resort she could be made a scapegoat.

In the meanwhile, Barbara was blissfully unconscious of any trouble, and went singing cheerily about her room that morning. Since the delivery of her check to Mrs. Wilson it seemed to her that the skies were blue again. During the rest of her stay in Washington Bab meant just to enjoy the beautiful sights of the wonderful city and not to trouble about the disagreeable people. She did intend to ask Harriet to take her to see the cunning little Chinese girl, Wee Tu, before she went home, but she had no other very definite desires.

As for Mrs. Wilson? Barbara had just wisely decided that the woman belonged to a curious type, which she did not understand and wished to keep away from. Bab did not admire Mrs. Wilson’s methods of playing jokes. On the other hand it was none of Barbara Thurston’s business. So long as she had put the paper back in Mr. Hamlin’s strong box no harm had been done.

Barbara still had in her possession the key to that strong box. She had neglected to give it to Harriet, because Harriet had left home so soon after breakfast. And now that very terrifying person, Mr. William Hamlin, had returned home, and Barbara Thurston still had the key in her possession. Even Ruth had gone out. What should she do? She decided to keep the key until Harriet came back in the afternoon. Then Harriet could make some sort of explanation to her father. Barbara simply did not have the courage to tell Mr. Hamlin that she had discovered Mrs. Wilson tampering with his papers, and that it was she who had found the stolen paper and locked it up again.

However, fate was certainly against Bab at the present time. A servant knocked at the door of the next room, where Grace and Mollie were reading.

“Please,” the maid said, “Mr. Hamlin wants to know if Miss Harriet left a key with you? It is a most important key, and Mr. Hamlin needs it at once.”

Grace and Mollie both shook their heads. No; Harriet had mentioned no such key to them.

Barbara was waiting in the next room with the door open. She knew her turn would come next.

“Do you know anything of the key, Miss Barbara?” Harriet’s maid inquired.

Of course Bab blushed. She always did at the wrong time.

“Yes, I have the key, Mary,” she replied. “Wait a minute, I will get it for you.”

“Do the young ladies know anything of my key?” Mr. William Hamlin’s impatient voice was heard just outside Barbara’s door.

Innocently the maid opened it. “Wait a minute, Mr. Hamlin, please. Miss Thurston says she has the key. She is getting it for you now.”

And Barbara had to come to the door herself to present the key to this dreadful old “Bluebeard.”

“I presume my daughter left my key in your charge,” Mr. Hamlin asked coldly.

“No,” she declared almost under her breath, hoping her stern host would either not hear her, or at least not heed her. “Harriet did not leave it with me.”

“Then kindly tell me how my key came into your possession?” Mr. Hamlin inquired, in chilling, even tones. Bab shivered.

“I found it,” Bab answered lamely, having it in mind to tell the whole strange story of last night’s experience. But she was too frightened by Mr. Hamlin’s manner and by the fear that she would be regarded as a telltale by Harriet. If Mr. Hamlin’s own daughter had not considered her guest’s actions unusual, it was not exactly Bab’s place to report them. So she remained silent, and her host also turned away in silence.

Harriet did not come home until just before dinner time. She told the “Automobile Girls” she had spent a delightful day, but her behavior was unusual. She looked frightened, though at the same time happier than she had seemed since the hour she had received the first threatening letter from her dressmaker.

Peter Dillon had walked home with Harriet. Barbara, who happened to be standing at the front window, saw them stop to talk for a moment at the door before Peter said good-bye. Peter was making himself very charming to Harriet. He was talking to her in his half laughing, half earnest fashion in the very manner that had seemed so attractive to Bab, too, at first. But it was a manner she had learned later on to distrust and even to fear.

When Harriet parted from Peter Dillon she nodded her head emphatically and apparently made him a promise, and Barbara saw Peter look back at her with a peculiar smile as she ascended the steps.