'In this department?' asked Psmith.

'Yes.'

'Then, Comrade Bannister, you are the very man I have been looking for. Your knowledge will be invaluable to us. I have no doubt that, during your stay in this excellently managed department, you had many opportunities of observing Comrade Rossiter?'

'I should jolly well think I had,' said Bannister with a laugh. 'He saw to that. He was always popping out and cursing me about something.'

'Comrade Rossiter's manners are a little restive,' agreed Psmith. 'What used you to talk to him about?'

'What used I to talk to him about?'

'Exactly. In those interviews to which you have alluded, how did you amuse, entertain Comrade Rossiter?'

'I didn't. He used to do all the talking there was.'

Psmith straightened his tie, and clicked his tongue, disappointed.

'This is unfortunate,' he said, smoothing his hair. 'You see, Comrade Bannister, it is this way. In the course of my professional duties, I find myself continually coming into contact with Comrade Rossiter.'