I have traced her to Paddington." Mr.Brimsdown decided that, as the detective knew that much, it absolved him from any obligation to betray the daughter of his dead client.

His feeling of relief unsealed his lips, and led him into an indiscretion.
"It seems incredible that she can be guilty." As he spoke the memory of Sisily's tender and wistful face, as he had seen it that night, came back to him.
"She had some justification, you know, if she was listening at the door that afternoon," replied Barrant thoughtfully.
"It is hardly possible that she could have inflicted those marks on the arm," Mr.Brimsdown said.
"How did you learn of them ?" asked the detective quickly, in a changed tone.
Too late Mr.Brimsdown realized that in contrast to his silence with Charles Turold, he had now gone to the other extreme and said too much.

He hesitated, but his hesitation was useless before the swiftness of Barrant's deduction.
"Was Charles Turold showing you the marks when I found you in the other room ?" he asked with a keen glance.
Mr.Brimsdown's admission of that fact was coupled with an assurance that the young man had shown him the marks because he was convinced of Sisily's innocence.
Barrant dismissed young Turold's opinions about the case with an impatient shake of the head.

"Who told him about the marks ?" he said.
It was the thought which had occurred to Mr.Brimsdown at the time, but he did not say so then.

"How did you discover them ?" he asked.
"When I was examining the body.