'Then go away,' she told him, and abruptly began to weep.

Zellaby hesitated. 'Is there anything I can -?'

'Yes. Go away ,' she repeated. 'You don't think I want to make an exhibition of myself, do you?' she added, tearfully.

Zellaby was still irresolute.

'She's hungry,' Mrs Brinkman said. 'You'd understand if yours was one of the Dayout babies. Now, will you please go away! '

It did not seem the moment to pursue the matter further. Zellaby lifted his hat once more, and did as he was required. He went on, with a puzzled frown on his brow as he realized that somewhere he had missed a trick; something had been kept from him.

Half– way up the drive to Kyle Manor the sound of a car behind made him draw in to the side for it to pass. It did not pass, however. It drew up beside him. Turning, he saw not the tradesman's van he had assumed it to be, but a small black car with Ferrelyn at the wheel.

'My dear,' he said, 'how nice to see you. I had no idea you were coming. I wish they wouldn't forget to tell me things.'

But Ferrelyn did not give him smile for smile. Her face, a little pale, remained tired-looking.

'Nobody had any idea I was coming – not even me. I didn't intend to come.' She looked down at the baby in the carry-cot on the passenger seat beside her. 'He made me come,' she said.

On the following day there returned to Midwich, first, Dr Margaret Haxby from Norwich, with baby. Miss Haxby was no longer on the staff of The Grange, having resigned two months before, nevertheless it was to The Grange she went, demanding accommodation. Two hours later came Miss Diana Dawson, from the neighbourhood of Gloucester, also with baby, also demanding accommodation. She presented slightly less of a problem than Miss Haxby since she was still a member of the staff, though not due to return from leave for some weeks yet. Third, came Miss Polly Rushton from London, with baby, in a state of distress and confused emotions, asking help and shelter of her uncle, the Reverend Hubert Leebody.

The day after that, two more ex-staff from The Grange arrived, with their babies, admitting their resignations from the Service, but at the same time making it perfectly clear that it was The Grange's duty to find them a room of some kind in Midwich. In the afternoon, young Mrs Dorry, who had been staying in Devonport to be near her husband in his latest posting, arrived unexpectedly, with her baby, and opened up her cottage.

And on the next day there showed up from Durham, with baby, the remaining member of The Grange staff involved. She, too, was technically on leave, but insisted that a place must be found for her. Finally appeared Miss Latterly, with Miss Lamb's baby, urgently returning from Eastbourne whither she had taken Miss Lamb for recuperation.

This influx was observed with varying emotions. Mr Leebody welcomed his niece warmly, as though she were putting it within his power to make some amends. Dr Willers was perplexed and disconcerted – as was Mrs Willers, who feared it might cause him to postpone the much-needed holiday she had arranged for him. Gordon Zellaby had the air of one regarding an interesting phenomenon with judicial reserve. The person upon whom the development pressed most immediately was, without doubt, Mr Crimm. He was beginning to wear a distraught look.

A number of urgent reports went in to Bernard. Janet's and mine was to the effect that the first, and probably the worst, hurdle had been crossed, and the babies had arrived without nationwide obstetrical interest, BUT if he still wished to avoid publicity the new situation must be dealt with promptly. Plans for the care and support of the children would have to be established on a sound, official footing.

Mr Crimm urged that the irregularities appearing in his personnel records were now on a scale that had taken them beyond his control, and that unless there was swift intervention at a higher level, there was soon going to be an almighty rumpus.

Dr Willers felt it necessary to turn in three reports. The first was in medical language, for the record. The second expressed his opinions in more colloquial terms, for the lay. Among the points he made were these:

'The survival rate of one hundred per cent – resulting in 31 males and 30 females of this special type – means that only superficial study has been possible, but of the characteristics observed, the following are common to them all:

'Most striking are the eyes. These appear to be quite normal in structure; the iris, however, is, to the best of my knowledge, unique in its colouring, being of a bright, almost fluorescent-looking gold, and is the same shade of gold in all.

'The hair, noticeably soft and fine, is, as well as I can describe it, of a slightly darkened blond shade. In section, under the microscope, it is almost flat on one side, while the other is an arc; the shape being close to that of a narrow D. Specimens taken from eight of the babies are precisely similar. I can find no record of such a hair-type being observed hitherto. The finger and toe nails are a trifle narrower than is usual, but there is no suggestion of claw formation – indeed, one would judge them to be slightly flatter than the average. The shape of the occiput may be a little unusual, but it is too early to be definite about that.

'In a former report it was surmised that the origin might be attributable to some process of xenogenesis. The very remarkable similarity of the children; the fact that they are certainly not hybrids of any known species, as well as all the circumstances attending gestation, tend, in my view to support this opinion. Additional evidence may accrue when the blood-groups can be determined – that is to say, when the blood circulating ceases to be that of the mother's group, and becomes that of the individual.

'I have been unable to find any record of a case of human xenogenesis, but I know of no reason why it should not be possible. This explanation has naturally occurred to those involved. The more educated women entirely accept the thesis that they are host-mothers, rather than true mothers; the less educated find in it an element of humiliation, and so tend to ignore it.

'In general: the babies all appear to be perfectly healthy although they do not show the degree of "chubbiness" one expects at their age: the size of the head in relation to the body is that normally found in a somewhat older child: a curious, but slight, silvery sheen on the skin has given concern to some of the mothers, but is common to all, and would appear to be normal to the type.'

After reading through the rest of his report, Janet took him up on it severely.

'Look here,' she said. 'What about the return of all the mothers and babies – all this compulsion business? You can't just skip that altogether.'

'A form of hysteria giving rise to collective hallucination – probably quite temporary,' said Willers.

'But all the mothers, educated or not, agree that the babies can, and do , exert a form of compulsion. Those who were away didn't want to come back here; they came because they had to. I've talked to all of them, and what they all say is that they suddenly became aware of a feeling of distress – a sense of need which they somehow knew could only be relieved by coming back here. Their attempts to describe it vary because it seems to have affected them in different ways – one felt stifled, another said it was like hunger or thirst, and another, that it was like having a great noise battering at one. Ferrelyn says she simply suffered from intolerable jitters. But, whichever way it took them, they felt it was associated with the babies, and that the only way to relieve it was to bring them back here.