'The first principle of warfare,' said Psmith at breakfast next morning, doling out bacon and eggs with the air of a medieval monarch distributing largesse, 'is to collect a gang, to rope in allies, to secure the cooperation of some friendly native. You may remember that at Sedleigh it was partly the sympathetic cooperation of that record blitherer, Comrade Jellicoe, which enabled us to nip the pro-Spiller movement in the bud. It is the same in the present crisis. What Comrade Jellicoe was to us at Sedleigh, Comrade Rossiter must be in the City. We must make an ally of that man. Once I know that he and I are as brothers, and that he will look with a lenient and benevolent eye on any little shortcomings in my work, I shall be able to devote my attention whole-heartedly to the moral reformation of Comrade Bickersdyke, that man of blood. I look on Comrade Bickersdyke as a bargee of the most pronounced type; and anything I can do towards making him a decent member of Society shall be done freely and ungrudgingly. A trifle more tea, Comrade Jackson?'

'No, thanks,' said Mike. 'I've done. By Jove, Smith, this flat of yours is all right.'

'Not bad,' assented Psmith, 'not bad. Free from squalor to a great extent. I have a number of little objects of _vertu_ coming down shortly from the old homestead. Pictures, and so on. It will be by no means un-snug when they are up. Meanwhile, I can rough it. We are old campaigners, we Psmiths. Give us a roof, a few comfortable chairs, a sofa or two, half a dozen cushions, and decent meals, and we do not repine. Reverting once more to Comrade Rossiter--'

'Yes, what about him?' said Mike. 'You'll have a pretty tough job turning him into a friendly native, I should think. How do you mean to start?'

Psmith regarded him with a benevolent eye.

'There is but one way,' he said. 'Do you remember the case of Comrade Outwood, at Sedleigh? How did we corral him, and become to him practically as long-lost sons?'

'We got round him by joining the Archaeological Society.'

'Precisely,' said Psmith. 'Every man has his hobby. The thing is to find it out. In the case of comrade Rossiter, I should say that it would be either postage stamps, dried seaweed, or Hall Caine. I shall endeavour to find out today. A few casual questions, and the thing is done. Shall we be putting in an appearance at the busy hive now? If we are to continue in the running for the bonus stakes, it would be well to start soon.'

Mike's first duty at the bank that morning was to check the stamps and petty cash. While he was engaged on this task, he heard Psmith conversing affably with Mr Rossiter.

'Good morning,' said Psmith.

'Morning,' replied his chief, doing sleight-of-hand tricks with a bundle of letters which lay on his desk. 'Get on with your work, Psmith. We have a lot before us.'

'Undoubtedly. I am all impatience. I should say that in an institution like this, dealing as it does with distant portions of the globe, a philatelist would have excellent opportunities of increasing his collection. With me, stamp-collecting has always been a positive craze. I--'