A heart-wrenching speculative-tinged adult debut from author Tashie Bhuiyan, for fans of Matt Haig, Rebecca Serle, and Everything Everywhere All At Once.
PARALLEL LINES
by Tashie Bhuiyan
Gallery, Summer 2026
(via Park, Fine & Brower)
Two estranged twin sisters. One who left. One who stayed.
Astoria and Grace Sadiya share a past, but their presents couldn’t be more different. Seven years ago, after a massive fight, Astoria left home and never looked back while Grace stayed with their parents in New York. They haven’t seen each other since. Until their twenty-fifth birthday, when they blow out their candles and make the same wish—only to wake up in an alternate universe together. Stuck traveling from universe to universe, Grace wants nothing more than to return to her own world, despite her growing fear that her parents will only ever see her as a burden. Meanwhile, Astoria is desperate to find a timeline where her best friend and first love unquestionably reciprocates her feelings. Unable to move through the multiverse without each other, the sisters reluctantly join forces in hopes of locating a universe where both their wishes come true.
But the longer Astoria and Grace spend together, the closer they come to confronting the secrets and suffering of their childhoods, and the pain and betrayal of the night Astoria ran away. Can the sisters accept that they are reflections of one another, two halves of the same whole, when neither of them likes what they see in the mirror? And after seven years of festering silence, can they find their way to a universe where they have unconditional love and each other—or are their paths destined to always run parallel?
Tashie Bhuiyan is the author of the Young Adult novels Counting Down With You, A Show For Two, Stay With My Heart, and the forthcoming I’ll Pretend You’re Mine. She is a New Yorker through and through, and hopes to change the world, one book at a time. She loves writing stories about gaining agency through growth and surviving against all odds. When she’s not doing that, she’s probably traveling, attending a concert, or bothering her cat, Zuko.