But there could be no doubt about him.

His close-cropped head and the cut of his collar and tie never came out of England.
That did something to reassure me, but as we rowed back to Bradgate my obstinate doubts would not be dismissed.

The thing that worried me was the reflection that my enemies knew that I had got my knowledge from Scudder, and it was Scudder who had given me the clue to this place.
If they knew that Scudder had this clue, would they not be certain to change their plans?
Too much depended on their success for them to take any risks.

The whole question was how much they understood about Scudder's knowledge.

I had talked confidently last night about Germans always sticking to a scheme, but if they had any suspicions that I was on their track they would be fools not to cover it.