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About The Book

In this “thought-provoking and engaging” (School Library Journal) debut novel, Sonya Mukherjee shares the story of sisters Clara and Hailey, conjoined twins who are learning what it means to be truly extraordinary.

Seventeen-year-old conjoined twins, Clara and Hailey, have lived in the same small town their entire lives—no one stares at them anymore. But there are cracks in their quiet existence and they’re slowly becoming more apparent. Clara and Hailey are at a crossroads. Clara wants to stay close to home, avoid all attention, and study the night sky. Hailey wants to travel the world, learn from great artists, and dance with mysterious boys. As high school graduation approaches, each twin must untangle her dreams from her sister’s, and figure out what it means to be her own person.

Told in alternating perspectives, this unconventional coming-of-age tale shows how dreams can break your heart—but the love between sisters can mend it.


Gemini 1 Clara
About four years ago, when I was thirteen and still prone to crying spells, my mother liked to show off her so-called wisdom by telling me that every teenage girl sometimes feels like a freak of nature. She claimed that every adolescent worries that everyone’s staring at her, and every girl at some point has believed that no one likes her and that she’ll never belong.

And sometimes I would just listen and try to believe her, but then this one time (I guess it was the last time she gave the speech) I said, “And does every teenage girl sometimes feel like she has a super-ugly ninety-pound tumor sticking out of her butt?”

And then the tumor started crying, and I felt pretty bad, but not bad enough to apologize.

That was a long time ago, and I have matured somewhat. I’m nicer to my sister now. Nicer to everyone, I guess, or at least I’m trying. I mean, I’m still pretty angry, but what are you going to do? It’s nobody’s fault, the way things are.

But back then I kind of thought, If I’m so miserable, shouldn’t she be miserable too? I mean, we’re supposed to share everything, right?

We were already sharing the lower end of our spinal column, and sensations in the lower halves of our bodies. We had two totally separate upper halves—two heads, two faces, two sets of arms, the whole works. And for that matter, we also had two full pairs of legs and feet. But we were joined together at the midpoint, in basically a back-to-back position—or butt-to-butt, if you want to get all technical about it. While our stomachs were separate, our guts were, according to the world’s leading medical experts, as tangled together as a vat of discarded Christmas tree lights, and partially fused.

We were two complete, full-size people, with two normal, fully functioning brains; and yet, if she ate too much pizza, we both felt a little unwell. If the doctor touched my foot, Hailey could feel it. And if I called myself a hopeless, unlovable freak, well, I supposed Hailey could feel that, too. But only if I said it out loud.

•  •  •

And so it was that when we learned a new boy would be entering our senior class, and every girl in our tiny rural school started speculating and gossiping about him—finally, a fresh boyfriend prospect, for the first time in more than a year!—I refrained from pointing out to Hailey that this was hardly any concern of ours.

Not that it was easy to hold my tongue. Sunday afternoon, the day before he was supposed to show up, we were sitting back-to-back on our bed, cross-legged, our laptops open in front of us. I was trying to concentrate on calculus, but she kept bursting out with these random nonsense questions, like, “So, what color do you think his eyes will be?” or “Do you think he’ll speak any second languages?”

And I just kept laughing at her, but it made me want to scream, because it was like Hailey had no idea who she was. When I looked in the mirror, I saw what anyone else would see: a bizarre eight-limbed creature that probably shouldn’t have survived the womb. But Hailey acted as if, through a strange mental glitch, she could look in the mirror and see some lovely, fascinating nymphet. And this hallucination was so real to her, she thought everyone else could see it too. Even boys.

I’m not saying I hadn’t thought about them. It was hard not to, when at any given moment half our school was either making out in the hallways or discussing the latest school dance. Out here in entertainment-forsaken Bear Pass, school dances were the second-most-popular social events, surpassed only by hanging out at the Taco Bell parking lot with pilfered beers and cigarettes.

So yeah, sometimes I would fantasize about a European exchange student showing up, brilliant and witty, cheerfully amused by our small-town high jinks, with a mind as open as the night sky. I guessed Hailey had her own version of the fantasy (less cheerfully amused, more brooding and dangerous), but even if both versions showed up, so what?

Seriously, who do you think would be the best boyfriend for a girl sharing part of her spinal column with her sister? Be honest.


About The Author

Sonya Mukherjee grew up in California sitting in trees, reading books, and writing stories in her head. She studied English and creative writing at Stanford and San Francisco State University, and went on to work as an editor for a variety of book publishers, magazines, and websites, from The Future of Children to Dirt Rider. Now she lives with her family in the San Francisco Bay Area, where she spends her time sitting in coffee shops, reading books, and writing stories on her laptop. Gemini is her first novel. Follow her on Twitter @SonyaMukherjee.

Product Details

  • Publisher: Simon & Schuster Books for Young Readers (July 25, 2017)
  • Length: 336 pages
  • ISBN13: 9781481456784
  • Grades: 9 and up
  • Ages: 14 - 99
  • Lexile ® HL790L The Lexile reading levels have been certified by the Lexile developer, MetaMetrics®

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Raves and Reviews

*"This debut novel is fascinating. . . . Gemini will satisfy curiosity about conjoined humans but goes far beyond that to explore issues of identity and relationships important to all teens."

– VOYA, Starred Review

*"While leavened with comfortable teen-literature tropes, this debut isn't high-concept-fueled candy floss. The twins' distance from "normal," all that circumscribes their conjoined world, is ever present, and the struggle to sustain their senses of self is visceral. . . . Readers who've wondered why some choose to live with a disability that might be "cured" will find plenty to ponder here. As developments in genetics reshape the medical landscape, these questions will only resonate further. Compelling and suspenseful from Page 1; Clara and Hailey pull readers into their unique world and don't let go."

– Kirkus Reviews, STARRED REVIEW

"Thought provoking and engaging, this story of two girls finding their own unusual path to adulthood will pull readers in and give them a lot to think about."

– School Library Journal

"[T]his debut is a well-researched and particularly heartfelt account of a rare medical condition and the people it affects. Though they share a body, Clara and Hailey are two very different people with different dreams, and their fight for a normal life will resonate with many."

– Booklist

"Uplifting. . ."

– Publishers Weekly

"With her debut novel, Sonya Mukherjee sensitively envisions how two conjoined sisters grow through their high school years. . . .the intimacy of their relationship, the way they have learned to walk together, to sit and sleep together, is extraordinary. Nothing is easily resolved here."

– Bookpage

“Beautifully written, raw and utterly unique, GEMINI is more than a story about conjoined twins….Mukherjee succeeds in marrying sincere characters and intense emotion with an articulate voice, producing a story that is unforgettable.”


"Whether they're confronting their well-meaning parents, bickering with each other or flirting with their crushes, Clara and Hailey are unusual yet familiar and appealing protagonists. Readers--just like their friends--will move rapidly beyond voyeuristic curiosity to empathy and genuine liking for the girls."

– Shelf Awareness

"[R]efreshing and right on the mark as far as teenagers, life, and angst go. . . . a good one to put in the hands of teens who love realistic fiction. Mukherjee has written a great first book on a topic we don’t often see in the teen fiction world."

– School Library Connection

Awards and Honors

  • ALA Quick Picks for Reluctant Young Adult Readers

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