Would the arrival of the afterthought mean that their mother would juggle them around again in another arbitrary permutation? Who would Olivia move in with? They used to fight over who had the dog in bed with them; now they argued over Olivia's affections. There were five bedrooms in all, but one was always kept as a guest bedroom even though none of them could remember a guest ever staying in the house. Now their mother had begun talking about doing out the attic. Amelia liked the idea of having a room in the attic, away from everyone else. She imagined a spiral staircase and walls painted white, and there would be a white sofa and a white carpet, and gauzy white curtains would hang at the window. When she grew up and married she planned to have a single child, a single perfect child (who would be exactly like Olivia), and live in a white house. When she tried to imagine the husband who would live with her in this white house, all she could conjure up was a blur, a shadow of a man who passed her on stairs and in hallways, and murmured polite greetings.
By the time Olivia had roused them all it was nearly half past seven. They got their own breakfast, except for Olivia, who was hoisted onto a cushion and served cereal and milk by Amelia and fingers of toast by Julia. Olivia was theirs, their very own pet lamb, because their mother was worn out by the afterthought and their father was a great mathematician.
Julia, stuffing herself with food (Rosemary swore that Julia had a Labrador hiding inside her), managed to slice herself with the bread knife but was dissuaded from wailing and waking their parents by Sylvia clamping her hand over her mouth, like a surgical mask. At least one incident a day involving blood was the norm – they were the most accident-prone children in the world, according to their mother, who suffered endless trips to Addenbrooke's with them – Amelia cartwheeling her way to a broken arm, a scalded foot for Sylvia (trying to fill a hot water bottle), a split lip for Julia (jumping off the garage roof), Julia, again, walking through a glass door – watched by Amelia and Sylvia in dumbfounded disbelief (how could she not see it?), and Sylvia's strange fainting episodes, of course – vertical to horizontal with no warning, her skin drained of blood, her lips dry – a rehearsal for death, betrayed only by a slight vibration of the eyelid.
The only one who was immune to this communal clumsiness was Olivia, who in her whole three years had sustained nothing much worse than a few bruises. As for the others, their mother said she may as well have finished her nurse training, what with the amount of time she spent at the hospital.
Most thrilling of all, of course, was the day that Julia cut off her finger (Julia did seem strangely attracted to sharp objects). Julia, five years old at the time, wandered into the kitchen unnoticed by their mother, and the first Rosemary knew about the amputated finger was when she turned round from aggressively chopping carrots and noticed a shocked Julia holding her hand aloft in mute astonishment, exhibiting her wound like a martyred child saint. Rosemary threw a tea towel over the bloody hand, scooped up Julia, and ran to a neighbor, who drove them in a screech of overexcited brakes to the hospital, leaving Sylvia and Amelia with the problem of what to do with the tiny, pale finger, abandoned on the kitchen linoleum.
(An ever-resourceful Sylvia thrust the finger into a bag of frozen peas and Sylvia and Amelia caught a bus to the hospital, Sylvia clutching the defrosting peas all the way as if Julia's life depended on them.)
Their first plan for the day was to walk along the river to Grantchester. They had gone on this expedition at least twice a week since the holidays began, giving Olivia a piggyback when she grew tired. It was an adventure that took them most of the day because there were so many distractions to explore – on the riverbank, in the fields, even in other people's back gardens. Rosemary's only admonition was don't go in the river, but they invariably set off with their swimming costumes concealed under their dresses and shorts and hardly a trip went by without them stripping off and plunging into the river. They felt grateful to the afterthought for transforming their normally prudent mother into such a careless guardian. No other child of their acquaintance was enjoying such a hazardous existence that summer.