Haley Cass Books in Order: Those Who Wait, The Whole Truth & Every Standalone (2026)

Haley Cass books in order is a short list with a long reach. She self-published Those Who Wait in 2020, built one of the most loyal readerships in sapphic romance without a traditional publisher, and in 2026 crossed into a new phase: The Whole Truth, a country-music rivals romance, arrived in September, and Atria publishes her first traditionally published novel, Between the Lines, in February 2027. Below is every Haley Cass book in publication order, the two small series and the companion novellas explained, where to start, how spicy they are and hotter picks for when you’ve caught up.

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Haley Cass Books in Order: Where to Start

Start with Those Who Wait. It is the book that built her audience and the one her readers still measure everything else against: a graduate student who can’t talk to women, an ambitious politician who has no time for romance, and a slow burn that takes its time and pays it off. Nearly every later book either continues that world or runs the same engine with new women.

If you’d rather start fresh, In the Long Run and On the Same Page are fully standalone, and The Whole Truth (2026) opens a new set of books. One quirk to know before you search: there is no Haley Cass book called Forward or The Flight Attendant. Those titles circulate on reading lists but aren’t hers.

Her books are long (several run past 500 pages), dual point of view and open door. Readers on romance.io rate Those Who Wait 4 out of 5 for steam, which matches the rest of the catalog: the burn is slow, but when the door opens it stays open, around 🌶️🌶️🌶️🌶️.

The Those Who Wait Books in Order

1. Those Who Wait (2020): Sutton Spencer is less than a year from finishing grad school, has no idea what comes next and struggles to talk to women at all. Charlotte Thompson has a planned path to political success and no interest in romance. What starts with a dating app and a no-strings understanding gets complicated when their worlds overlap. Our list of books like Those Who Wait has the readalikes.
2. Forever and a Day (2020, novella): Sutton and Charlotte finally commit to each other while the world watches. Read it straight after Those Who Wait.
3. The Snowball Effect (2024): with Sutton off in Rome, her best friend Regan Gallagher is on her own for the first time, and her new roommate is Emma Bordeaux, who has disliked her since the day they met. Then Emma’s mother comes back wanting to bond and decides the two of them are a couple, and Regan enjoys playing along a little too much. Enemies to lovers with a fake-relationship twist, and Sutton and Charlotte in supporting roles.
4. Midnight Rain (2025): an alternate-universe take on Those Who Wait, published for the book’s fifth anniversary. Charlotte, nearing forty with her political plans on track, and the question of how one past decision might have changed everything with Sutton. Available in Kindle Unlimited.

Read Those Who Wait first, without exception. Forever and a Day and Midnight Rain only work if you already love Sutton and Charlotte, and The Snowball Effect is best once you know who Regan is protecting.

The When You Least Expect It Books in Order

1. When You Least Expect It (2020): Caroline Parker wants to be the best divorce attorney in Boston, doubts she will ever find love and considers Christmas unlucky. A holiday romance for readers who like their heroine cynical and their ending earned.
2. Better Than Expected (2022): Hannah Dalton, raised by a mother who struggled, has set herself high goals for both her career and her marriage. A shorter companion set in the same world.

On the Same Page and the Standalones

1. In the Long Run (2021): Taylor Vandenberg left Faircombe, Tennessee, to see the world and hasn’t looked back. Brooke Watson stayed and now runs the town as its manager. When Taylor comes home, the attraction is mutual, but Taylor never stays anywhere and Brooke doesn’t do casual. A small-town, opposites-attract slow burn.
2. Down to a Science (2022, novella): written for the I Heart SapphFic Pride Collection. Ellie Beckett is on track to become an expert in biomedical engineering, likes her routine and avoids people. Ellie turns up again as a supporting character in The Next Chapters.
3. On the Same Page (2023): Riley Beckett and Gianna Mäkinen have been inseparable since their first year at Boston University. Riley assumes she understands Gianna completely, including their unspoken arrangement: casual intimacy is fine, romance is off the table. A holiday-party mix-up blows that up. Our guide to books like On the Same Page picks up from here.
4. The Next Chapters (2024, novella): Gianna’s side of the story, from finally confessing years of feelings to marriage and parenthood, with flashbacks to their college years.

The Whole Truth and the 2026 Books

1. The Whole Truth (2026): Juliet Jacobs has spent nearly a decade as country music’s sweetheart. Darcy Kincaid is the industry’s breakout star and the woman Juliet publicly envies. Forced to collaborate in person, their rivalry turns physical, and the casual, secret arrangement they agree to does not stay casual. The audiobook, a duet narration by Lori Prince and Bailey Carr, released September 29, 2026.
2. The B Side (2026, short story): a companion piece listed as the second Whole Truth story. Read it after the novel.

Haley Cass Books by Mood

You want the long, aching slow burn: Those Who Wait. It is the longest wait in the catalog and the biggest payoff, and Charlotte’s public career keeps raising the stakes on every private moment.

You want friends to lovers: On the Same Page. Riley and Gianna have the friends-with-benefits arrangement that only one of them believes in, and the book lives in the gap between what Riley assumes and what Gianna feels. Follow it with The Next Chapters for Gianna’s side.

You want enemies and a fake relationship: The Snowball Effect. Two roommates who can’t stand each other, a mother who decides they’re a couple, and a heroine who plays along with far too much enthusiasm.

You want small-town homecoming: In the Long Run. The town manager who stayed and the traveler who left, in a Tennessee town that remembers both of them.

You want a holiday read: When You Least Expect It, for a divorce attorney who thinks Christmas is bad luck.

You want rivals with a public spotlight: The Whole Truth. Two country stars, a well-known feud and a secret arrangement that has to survive both their fan bases.

All Haley Cass Books in Publication Order

1. Those Who Wait (2020)
2. Forever and a Day (2020, novella)
3. When You Least Expect It (2020)
4. In the Long Run (2021)
5. Better Than Expected (2022)
6. Down to a Science (2022, novella)
7. On the Same Page (2023)
8. The Next Chapters (2024, novella)
9. The Snowball Effect (2024)
10. Midnight Rain (2025)
11. The Whole Truth (2026)
12. The B Side (2026, short story)
13. Between the Lines (February 16, 2027)

What’s Next for Haley Cass: Between the Lines (2027)

Haley Cass’s first traditionally published novel, Between the Lines, is out from Atria on February 16, 2027. Alyssa Burke takes a faculty job at a small college in upstate New York and is dumped right before her first day. Still determined to prove she belongs, she has a one-night stand with Whitney, a composed, intimidating woman in the middle of a divorce, and then discovers that Whitney is Dr. Hart, her colleague and assigned faculty mentor, and that Alyssa has taken the job that used to belong to Whitney’s soon-to-be ex-husband. The publisher calls it a steamy, slow-burn sapphic academic romance. Preorders are open now.

See Between the Lines on Amazon →

Read Next: Hotter Picks From Fractal Enigma

Haley Cass readers come for the slow burn, the ambitious women with public careers and the moment the arrangement stops being an arrangement. These Fractal Enigma reads keep all three and run the heat to Inferno.

Her Favorite Bad Influence — Aurora North

Evelyn Hart has spent her whole life as the perfect senator’s daughter. When a compromising photo threatens the campaign, her family hires Sabrina Vale, DC’s sharpest crisis manager, to clean up the mess. Sabrina decides the image is the problem. Those Who Wait’s politics and public scrutiny, with a good girl who finally gets to be bad.

Heat: Inferno 🌶️🌶️🌶️🌶️🌶️
Tropes: Sexual Awakening, Opposites Attract, Good Girl Corruption, Forbidden Romance, Praise Kink, Secret Relationship

Start reading Her Favorite Bad Influence →

Her New Roommate — Aurora North

Victoria “Vic” Sterling controls everything: her schedule, her grades, her pre-med future and every feeling she has. Then a chaos artist who paints without apology moves into her basement apartment, and there is only one bed. The Snowball Effect’s roommates-who-can’t-stand-each-other setup, with the ice queen and the bi awakening turned all the way up. Free with Kindle Unlimited.

Heat: Inferno 🌶️🌶️🌶️🌶️🌶️
Tropes: Roommates to Lovers, One Bed, Ice Queen, Bi Awakening, Secret Relationship, Slow Burn, Hurt/Comfort

Start reading Her New Roommate →

Off the Record — Blair Lennox

Rowan Bell is the investigative journalist who once called Wren Wilder’s coming-out campaign “market-tested authenticity” in a viral takedown. Now her editor has assigned her a thirty-day tour profile of the queer country-pop superstar. One tour bus, one bed. If The Whole Truth’s country-music rivalry left you wanting more, this is the explicit version. Free with Kindle Unlimited.

Heat: Inferno 🌶️🌶️🌶️🌶️🌶️
Tropes: Enemies to Lovers, Celebrity Romance, Forced Proximity, Secret Relationship, One Bed, Grumpy/Sunshine

Start reading Off the Record →

Want more? Our guide to spicy sapphic slow burn romance is built for Haley Cass readers, and the best sapphic celebrity romance books list covers the music-star side of The Whole Truth.

FAQ: Haley Cass Reading Order

Do you need to read Haley Cass’s books in order?

Only inside each world. Read Those Who Wait before Forever and a Day, The Snowball Effect and Midnight Rain, and On the Same Page before The Next Chapters. In the Long Run and The Whole Truth stand alone.

Which Haley Cass book should I read first?

Those Who Wait. If you want something shorter or brand new, start with In the Long Run or The Whole Truth.

How spicy are Haley Cass’s books?

Open door and fairly explicit once the slow burn breaks, around 🌶️🌶️🌶️🌶️. Our romance spice levels guide explains the scale; every Fractal Enigma pick above is Inferno.

Are Haley Cass’s books being adapted?

No screen adaptation has been announced. The big 2026 to 2027 news is publishing: The Whole Truth this fall and her traditional debut, Between the Lines, from Atria in February 2027.

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