"Do you take me for a fool," cried Mrs. Pelgrin, her sallow face becoming a fiery red; "am I not telling you again and again that Mrs. Jarsell never went to see your rubbishy race. She came here to get some eggs from me, and sat in this very room at nine o'clock, or a little after. You take me for a liar, you--you--oh, I'll best see to the dinner, or I'll lose my temper," and the sharp-tongued woman, having already lost it, bounced out of the room. "Mrs. Jarsell was here at nine o'clock, or a little after," repeated Dan, in a wondering tone, "then she could not have been in London. All the same, I swear I saw her on that cinematograph." Here he opened his bag and took out an "A.B.C.," to see the trains from Thawley to London. An examination showed him that, even if Mrs. Jarsell had left Thawley Station at nine o'clock exactly, she would not have reached St. Pancras until twelve-five. This would scarcely give her time to arrive at Blackheath. The aeroplanes had started in the race at one o'clock, and, according to the evidence at the inquest, the people had been looking at them flying northward at the moment Durwin was stabbed. Mrs. Jarsell could not have arrived on the ground by one o'clock if she only got to St. Pancras at mid-day. And then, to do that, she would have been obliged to leave Thawley at nine o'clock. According to George she had not been near the station on that day, and if Mrs. Pelgrin was to be believed, she was in the very room he now occupied at the hour when the express departed. It was clearly impossible that she could have got to Thawley for the nine o'clock train, let alone it being impossible that had she caught the express she could have arrived in London to execute the crime by one o'clock, or a trifle later. Yet, on the other hand, was the evidence of Mrs. Pelgrin and her nephew, while on the other hand was the evidence of the cinematograph. One or the other must assuredly be wrong. Of course the landlady and George might be telling lies, but on the face of it there was no need for them to do so. Moreover, as Dan had sprung his questions on them unexpectedly, they could not have been ready with false answers. "She must have used a motor-car," thought Halliday, restoring the "A.B.C." to his bag, "yet even so, she was here at nine o'clock, and could not have reached town in the three hours and odd minutes. D---- it!"