‘With you!’ Kehler exclaimed.

‘It appears so. No doubt you have been instructed?’

Kehler denied it energetically.

‘But you refused to participate in a certain design,’ he reminded me.

‘I laid down certain conditions, which you declined to fulfil, but which have since been complied with by your principal.’

The Bavarian was thunderstruck. I relied upon his having reported his failure to whomever it was that had sent him to me; and there was nothing impossible in the suggestion that I had in consequence been approached directly.

‘You have credentials, I suppose?’ he asked.

I nodded carelessly.

‘You will convince me, perhaps?’ he persisted.

‘Are you authorised to convince me?’ was my retort.