As the big motor car swung round into Whitehall a second car entered Downing Street and had to draw up short in order to avoid a collision. Kathleen, thinking that an accident was unavoidable, leant forward and looked out of the window, and, to her astonishment, she discerned the face of Westerham in the other car. She drew back again with an exclamation, and though she set it down as imagination at the time, she had no doubt afterwards that as a matter of fact Mme. Estelle had become deathly pale. The car proceeded at a rapid rate up Whitehall and turning along Pall Mall made its way into Piccadilly. The run to Richmond was a smooth one, unmarked by any incident, and for the most part, both the women were profoundly silent. Each, indeed, was occupied with her own thoughts. Mme. Estelle, as she cast furtive and sidelong glances at Lady Kathleen, became more jealous and a little more disinclined to believe Melun's protestations at every mile. She would have given much to be able to ask Lady Kathleen point-blank whether or not Melun had made a marriage with her one of the conditions which he was seeking to foist on the Prime Minister. But she had the good sense to see that even a tentative question of this sort would instantly arouse Lady Kathleen's suspicions. Even as the pseudo agent of the Russian Government her knowledge of affairs could not be supposed to include a matter such as this. Kathleen, for her part, had spent the time in trying to account for Westerham's presence in Downing Street. Presumably he was about to make some further effort to persuade her father of his _bona fides_. And she grew more unhappy as she thought what her father's answer would again inevitably be, and could only pray that Westerham might have sufficient forbearance to persevere in spite of the Premier's certain rudeness. Presently Kathleen, watching from the window, saw the familiar shape of the Star and Garter come into view. Slightly to her surprise the motor-car did not slacken its speed, but went on through the gates of Richmond Park. Then, almost for the first time, she spoke to her companion. “The man must have made a mistake,” she said; “he has passed the hotel.” “Has he?” asked Madame, with an air of astonishment. “That is rather strange. He must know the way. Perhaps there is something wrong with the machinery.” But Lady Kathleen shook her head, for she knew enough of motoring to appreciate the steady purr of an engine which is running well. Suddenly the brakes were applied with considerable force and the car came to a rapid standstill. Then the door swung open and a man leaped in. Almost instantly he pulled up the blind shutters which covered the glass and shut out all the light, so that the interior of the car was in complete darkness. Kathleen gave a little cry and shrank back against the cushions. For in the darkness she felt the car give a great bound onwards and rush down the hill.