A modern alternative to SparkNotes and CliffsNotes, SuperSummary offers high-quality Study Guides with detailed chapter summaries and analysis of major themes, characters, and more.
Summaries & Analyses
Author Insights
Quizzes
Reading Tools
The book did not begin with a subject or a social concern. It began with a single visual that had stayed with Keegan long enough to demand examination, and the girl came second, as the means of tracing the image back to its source.
I did have a picture in my mind for a long time, and that was an image of a hand over still water and the reflection on the surface of that water, and I wanted to explore where that came from. And I came up with this girl.
That pattern, of writing toward an image rather than away from a known conclusion, is how she describes her process generally. The image is not decorative; it is the pressure that forces the work.
I have to write a story to make an image go away. It’s like an elbow nudging you into examining something you don’t quite understand, but need to. For me, writing is a way of understanding something and, as such, a journey into the unknown.
Once the girl existed, the book’s territory became explicit. Keegan grew up the youngest of six children on a 53-acre farm on the Wicklow-Wexford border, the same landscape she gives the story, and the question of what families actually provide (or withhold) was not abstract to her.
It’s an examination of home and an examination of neglect. I don’t trust that home is necessarily where one finds one’s happiness. Families can be awful places, just as they can be glorious and loving. Also, I’m very interested in what we can do without, what we can go without. To a child, for instance, the difference between being able to be well-fed when you are growing, and not, is enormous.
The decision to stay entirely inside the girl’s perception had a direct cost: Keegan invented a scene she then had to cut. She had imagined the Kinsellas, the couple who take in the girl for the summer, talking in bed about what to do with her. The scene clarified the adults’ intentions. She cut it anyway.
Because the girl, the narrator, didn’t know about it. If it’s not in her consciousness, I couldn’t put it in.
The choice of present tense followed directly from the same commitment to the girl’s limits. A child sent to strangers for a summer does not know when, or whether, she will go home. Past tense would have answered that question before the story began.
I told it in the present tense because again I wanted it to be a portrait of a piece of time, and she didn’t know when this would end or how it would end and so I wanted her to go from day to day with the feeling of real uncertainty and I think that if I’d written it in the past tense, that would have taken some of that away. It would have already happened rather than being something that was happening.
The narrator has no name anywhere in the book. At a school visit reported by Kingswood Oxford, a student asked why. The answer turns on what a name signals: importance, individuality, a particular claim to the reader’s attention. Keegan wanted the opposite.
I always chose anybody, not a somebody. By giving her a name, it would make her more important than she felt.
She was writing about a child from an Ireland where many children were unwanted or under-resourced. Singularity would have been the wrong register entirely.
Her model for prose texture came from her mother’s advice at a butcher’s counter. The analogy is precise: the fat that doesn’t seem necessary is exactly what carries the flavour. She revises exhaustively, working through at least fifty drafts by her own account, aiming not for polish but for what she calls emotional accuracy.
My mother taught me that if I went to the butcher and was choosing a piece of beef to roast, it should be marbled with fat. And I actually see good prose in the same way — marbled with what doesn’t seem to be necessary.
She also resisted the publishing category the book was given on arrival. For Keegan, the distinction between a novel and a long short story is not a matter of page count but of structural logic: a novel accumulates; a short story concentrates. She was unambiguous about which she had written.
Foster isn’t a novel. It’s a long short story.
Keegan rarely draws directly from autobiography, but one scene in the book has a specific source in her own childhood. The Kingsella home where the girl stays becomes crowded in summer, the same condition Keegan knew growing up the youngest of six on a farm that relatives visited seasonally. The moment when the girl wets the bed and Edna, the foster mother, deflects the shame by blaming the mattress came from one of those summers.
[paraphrased from text interview] The moment when the girl wets the bed and Edna deflects the shame by blaming the mattress was a rare autobiographical element in her fiction — relatives would stay on the family’s overcrowded farm in summer, and the scene comes from there.
Writing from inside a child’s perception was a discipline she took seriously, not a shortcut she assumed would be easy. She had spent years minding children and found that most adults underestimate the gap between remembering childhood and actually inhabiting it on the page.
I minded children for years, and I got on really well with children — that sense of wonder and that sense of freshness. I think because everyone’s been a child then they think they can easily write about being a child and I do think that isn’t true.
The choice of a girl as narrator was not arbitrary. Irish literary tradition, as Keegan saw it, had left a specific gap: the good Irish father, particularly in his relationship to a daughter. She wanted to fill it, which meant the narrator had to be female and the substitute father had to be tender rather than catastrophic.
They say that there are very few good Irish men in literature, good Irish fathers. So many of the fathers in our literature are just awful and neglectful, especially when it comes to fathering a girl, and one of the things I probably wanted to do is have a good Irish father in this story.
The summer setting was a practical constraint before it became an atmospheric one: a child from an intact family could only be sent away plausibly if school was out. But once that constraint was accepted, the heat became a tool for making the Kinsellas’ care feel almost physical.
For her to go away, it would have to be a summer. I made it hot because... it also deepened the happiness of the summer.
Readers frequently describe the ending of Foster as ambiguous, uncertain whether the girl will be allowed to stay with the Kinsellas or returned to her birth family. Keegan rejects the characterization, and her reasoning shifts the question from the text to the person holding it.
I don’t feel it is ambiguous. I felt the story was finished, and I feel that every single story is completed by its reader, not by its writer... most of the work in a piece of fiction is done by the reader, not the writer. It’s what the writer stokes up in the reader. Each reader’s private life, secret life, comes out.
She has a precise standard for what a good ending does: it forecloses alternatives. Not because the story resolves neatly, but because the logic of everything before it makes any other outcome feel false.
Good stories for me end inevitably: after they finish you feel there’s only one thing that could have happened, and that is the thing that happened.
The emotional core she wants readers to carry is not about grief for what the girl lacked at home, but about what becomes possible when neglect is replaced by attention. The claim is almost agricultural: growth follows care.
Nothing flourishes so much as that which is neglected, and is then minded. You grow really well when you are minded.
She also has a practical instruction for anyone who has finished the book and moved on. A first reading establishes the story; a second reading, knowing the ending, turns every early scene into a different kind of evidence. On that logic, the book’s true length is not its page count.
I do think no story has ever been read properly unless it’s read twice. So it’s a longer book, you see, than you think it is, because it needs to be read twice. Double the pages.