It was an empty dinghy which emerged from between the two barges and went drifting and revolving down towards Greenwich.
The fat man gasped a word to his comrade, and the Customs boat stopped dead.
''E's all right,' said the man in the bows.

'If it's 'im you want, 'e's on one o' them barges, so you've only got to step on and take 'im orf.' 'That's all,' said a voice out of the depths of the nearest barge, and it was the voice of Jules, otherwise known as Mr Tom Jackson.
''Ear 'im ?' said the fat man smiling.

''E's a good 'un, 'e is.

But if I was you, Mr Hazell, or you, sir, I shouldn't step on to that barge so quick as all that.' They backed the boat under the stem of the nearest barge and gazed upwards.
'It's all right,' said Racksole to Hazell; 'I've got a revolver.

How can I clamber up there ?' 'Yes, I dare say you've got a revolver all right,' Hazell replied sharply.
'But you mustn't use it.