'Look here, I say,' said Jim, after a pause, 'I believe there's something jolly queer up between Thompson and the Old Man, and I believe it's about me.'

'What on earth makes you think that?' asked Welch.

'It's his evil conscience,' said Charteris. 'No one who hadn't committed the awful crime that Jim has, could pay the least attention to anything Thompson said. What does our friend Thucydides remark on the subject?—

'"Conscia mens recti, nec si sinit esse dolorem
Sed revocare gradum
."

Very well then.'

'But why should you think anything's up?' asked Tony.

'Perhaps nothing is, but it's jolly fishy. You see Thompson and the Old 'Un pacing along there? Well, they've been going like that for about twenty minutes. I've been watching them.'

'But you can't tell they're talking about you, you rotter,' said Tony. 'For all you know they may be discussing the exams.'

'Or why the sea is boiling hot, and whether pigs have wings,' put in Charteris.

'Or anything,' added Welch profoundly.