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The book began not with a plot but with a biographical footnote Ward had been turning over for years: the documented tenderness that certain serial killers showed toward their animals. She’d accumulated specific cases, specific names, and the question underneath them refused to leave her alone.
Initially, the novel began as a book about serial killers and their pets. Dennis Nilsen had a dog he loved more than anything else—the dog was the only thing he cared about when he was arrested. Myra Hindley was devastated by the death of her dog Poppet. I’ve always been fascinated by the fact that people without empathy can form such strong relationships with their pets.
Her first two novels were historical Gothic, a form she’d come to feel carried preset rules she was expected to follow. Moving the genre into contemporary, American settings was partly an act of deliberate rule-breaking, and partly a way of drawing on a background she hadn’t yet used on the page.
I was born in the US and lived there as a child. I wanted to mine new areas of experience for this book – my US background, my lifelong fascination with serial killers and those wild forests of Washington State.
The Lake Sammamish murders of 1974, when Ted Bundy abducted two women from a crowded summer lakeshore, are woven through the novel’s atmosphere. Naming her protagonist ‘Ted’ was, she admitted, ‘a little bit naughty.’
Trauma research pulled the book’s scope wider than its original premise. The more Ward read, the more the project reshaped itself around her, until the direction of influence felt reversed.
It felt sort of like the book started writing me as I researched it, because the more I learned, the more miraculous and strange I felt the world was.
Ward had the ending locked before she wrote the first page. That fixed destination was the only stable element in a structure she describes as every thread depending on every other thread, so that revising any one of them sent tremors through the whole.
I knew where the book had to end up, so I wrote my way furiously towards that. It was like spinning a vast spiderweb. Each plot thread was integral yet interconnected to a hundred others, and each change affected and reverberated through the whole.
The book’s ‘Russian-doll structure’ layers multiple narrators inside one another: Ted, his cat Olivia, and a grieving woman named Dee, each telling a version of events the others can’t fully see. Holding all of that together while writing it, Ward said, produced a specific daily dread she hadn’t felt before.
I’ve never written a book where I was, on every page, not entirely sure if I could do it. Not just the emotional content, but technically as well—all the different strands, and all the nested narratives within the Russian-doll structure. Every day I was like, ‘Can I actually do this?’
Some scenes stayed as blank spaces in the manuscript nearly until the submission deadline because Ward couldn’t yet bring herself to write them. For the question of how to render Ted’s most disturbing actions at all, she needed an outside model before she could proceed.
One of the greatest challenges I faced while planning and researching the book was how to write the unwritable, the unthinkable — how to render actions and motivations that horrified me, on the page. It was Zombie, Joyce Carol Oates’s dark tunnel of a book, which showed me the way forward.
Ward designed the structural reveals, which reframe everything the reader has understood about Ted and Olivia, to feel less like plot tricks and more like a lens coming into focus. In a video interview about the book, she explained the distinction she draws between the two words.
Ward said she prefers the word “reveal” to “twist” because what the reader should feel is that “the world is suddenly revealed” — not that a trick has been played on them. [paraphrased from audio]
Before Stephen King read an advance copy, the manuscript had accumulated a pile of rejections for contradictory reasons. Ward and her agent made a ritual of receiving them.
All the reasons were very, very different. It’s very high concept, it’s very abstract, and it relies on a gee-dee talking cat.
The book eventually found a home with Viper Books. Ward has said plainly that what changed its fortunes afterward was Stephen King.
Olivia, the cat narrator, posed a specific commercial risk: a cat’s-eye-view of events reads, in most fiction, as charming rather than menacing. Ward had that anxiety before she started writing Olivia’s sections, and was surprised by where the character ended up.
I had all these worries about writing an animal narrator, and in particular a cat because that has cozy overtones. And in the end, it was that magical thing where she just strolled in, as cats tend to do. I love how she became the moral center of the book. I didn’t expect that to happen.
The immersion Ward asks of readers is something she first demands of herself. The goal, when writing any of the book’s three narrators, was to dissolve the author’s own perspective entirely into the character’s.
I want the reader to wear them like a skin.
Ward spent months in research conversations with people who had survived extreme trauma. The emotion she came away with was not what readers might expect from a horror novel’s aftermath, and she named it precisely.
I’d like people to come away feeling the sense of awe I felt when I was researching it, about how incredibly resilient the human mind is. The things people were willing to share with me was quite extraordinary. And the way people can not only survive but actually thrive in situations where it shouldn’t be possible at all.
The image Ward chose to describe her intention comes from the actual Lake Sammamish crime scene, where investigators found a bird’s nest entwined with long blonde hair. She took that detail and turned it into a statement of purpose for the whole novel.
Having conjured this atrocity in ‘The Last House on Needless Street,’ I was determined that compassion and life must also thread their way through the novel — like filigree perhaps, or golden hair, woven into a nest for hatching birds.
Ward returns to this point in almost every interview about the book, because she wants to push back against the assumption that horror writers are drawn to suffering. Her account of where dark fiction actually originates is specific about the emotional work it requires.
You can’t create horror without compassion. It’s entirely predicated on it. These dark tales don’t come from an enjoyment of suffering. They come from being willing to be empathetic and enter into those places and really explore what people might be feeling in them.