Thus dismissed, there was nothing for it but for Eustace to return to his house. In spite of Mrs. Perth's calmness he saw that she was worried, and had something on her mind. He wondered if she really knew anything of Frank. But that was impossible, unless Darrel had told Mildred that Lancaster, _alias_ O'Neil, was the murderer of her brother. That would account for Mrs. Perth's stiffness, as she would not be too well disposed towards Jarman for having introduced a criminal--and such a criminal!--to her and Mildred. However, nothing could be learnt until he saw Darrel on the morrow. "And if he _has_ told," said Eustace, over a final pipe, "why, Mildred will be angry with me." That night Jarman got little sleep. It annoyed him that Frank should be absent at so critical a moment. He wanted the young man to open the sealed letter, and had half a mind to open it himself. But on consideration he did not think he was justified in taking such a course. If Darrel had told Mildred, Eustace determined to explain the whole of his connection with the matter, and to assure her again of his firm belief in Frank's innocence. As soon as Lancaster revealed his new hiding-place he would take him the sealed letter, and from its contents might be gathered some clue to all these mysteries. They seemed to increase every day, and to grow darker the more he endeavoured to throw light on them. The next morning Eustace, having had a bad night, slept well into the middle of the day. Then he had a cold bath, and having cooked his own breakfast sat down to it, somewhere about twelve o'clock. He was still worried but ate well, as he knew he had a hard day before him. But just as he was pouring out his second cup of coffee, he became aware that someone was looking at him through the window. To his surprise he saw the arch and piquant face of Fairy Fan. With a sudden start he rose and went to the door. There she was in the most dainty of costumes, looking amused at his astonishment. "You asked me to come, so I have come," she said, stepping into the house without being asked. "I hope you don't mind my taking you by surprise in this way?" "Oh, not at all," said Eustace, mechanically, and led the way to his sitting-room, wondering what ill wind had blown her hither. "But I wish you had given me notice of your coming." Miss Berry--as she chose to be called--plumped into a seat, and cast an eye over the untidy table. "You didn't want to be found at breakfast so late," she said smiling. "I thought you were an early riser." "I had a bad night," said Eustace, shortly. Fan selected a cigarette from a box near at hand, and lighted it. "I don't wonder at that," she said through a cloud of blue smoke. "If you will shelter criminals, what can you expect?" Jarman started uneasily. "What do you mean?" he demanded frowning.