Hadley's fingers stopped tapping while he scrutinized the other.
'How did you know it was Mr Driscoll? You said the mist was thickening….'
'I didn't say I saw his face. Nobody could have recognized him that way: he was just an outline. But, sir, wait! There was his size. There was his plus-fours, which he always wore lower-down than other gentlemen. And when he went out he was a wearing his cap: with the top all pulled over to one side. Then I saw him walking back and forth in Water Lane.'
`But you can't swear it was actually he?'
`Yussir. I can. Becos, sir, he went to the rail in front of
Traitors' Gate and leaned on it. And whereupon he struck a match to light a cigarette. Just for a second I saw part of his face. Yussir, I'm positive. I know. I saw 'im just before the other person touched 'im on the arm…. '
`What?' demanded Hadley, with such suddenness that Parker took it for a slur on his veracity.
`Sir, so help me God' The other person that was standing over by the side of Traitors' Gate. And that came out and touched Mr Driscoll on the arm.'
`Did you see this other person, Parker?'
`No sir. It was too dark there; shadowed, sir. I shouldn't even have seen Mr Driscoll if I hadn't been watching him and saw 'im strike the match.'