The next day they walked to the village, prepared for an unpleasant morning. They buried seven bodies and burned eleven huts. Several times, during the day, they noticed tsetse at rest on the framework of the huts.

"They have followed people up from the water," said Lionel. "They don't attack us, because we are wearing white duck. They don't like white."

"Flies have an uncanny knowledge," said Roger. "How do they get their knowledge? Is it mere inherited instinct? I notice that they always attack in the least protected spots. How do they know that a man cannot easily drive them from between his shoulders? They do know. I notice they nearly always attack between the shoulders."

"Yes. And dogs on the head, cattle on the shoulders, and horses on the belly and forelegs. They're subtle little devils."

"And they have apparently no place in the scheme of the world, except to transplant the trypanosome from where he is harmless to where he is deadly."

"Lots of men are like that," said Lionel. "You can go along any London street and see thousands of them outside those disgusting pot-houses. Men with no place in the scheme of the world, except to transplant intoxicants from the casks, where they are harmless, to their insides, where they become deadly, both to themselves and to society. Any self-respecting State would drown the brutes in their own beer. Yet the brutes don't get drowned. And as they do not, there must be a scientific reason. Either the State must be so rotten that the germs are neutralised by other germs, or the germs must have some dim sort of efficiency for life, just as the tsetses have. They have the tenacity of the very low organism. It is one of the mysteries of life to me that a man tends to lose that tenacity and efficiency for life as soon as he becomes sufficiently subtle and fine to be really worth having in the world. I like Shakespeare because he is one of the very few men who realise that. He is harping on it again and again. He is at it in Hamlet, in Richard the Second, in Brutus, Othello. Oh, in lots of the plays, in the minor characters, too, like Malvolio; even in Aguecheek. And people call that disgusting, beefy brute, Prince Henry, 'Shakespeare's one hero,' a 'vision of ideal English manhood.' Shakespeare's one hero! Shakespeare wrote him with his tongue in his cheek, and used an ounce of civet afterwards."

They turned again to their work. After changing their clothes, bathing antiseptically, and anointing their hands with corrosive sublimate solution and alcohol, they began solemnly to distil some water for their tiny store of atoxyl.

"Lionel," said Roger, "we've got enough drug to cure two, or perhaps three of these people. We ought not to use it all. We are away in the wilds here. Save one dose at least for yourself in case you should get a relapse. You know how very virulent a relapsed case is."

"I know," said Lionel. "But that is part of the day's work. Our only chance of doing good here is to find an anti-toxin. I want this spare atoxyl for that."

"But," said Roger, "you cannot make an effective serum from the blood of a man in whom atoxyl is at work. Surely atoxyl only stimulates the phagocytes to eat the trypanosome."