Head Under Water

Opal Sullivan has a plan:

-Move home to help her mother grieve the loss of her best friend

-Stay in her childhood home until she finds a place of her own

-Keep far, far away from Will Kendricks

Opal's plan falls apart before she can unpack the first box.

-Too many questions still linger around Ruth's death

-Her mom has already found her a new roommate

-The new roommate is Will

Growing up as neighbors with best friends for mothers, Opal has never been able to untangle her life from Will's. He was the boy who teased her, the teenager she hated, and the man she never understood. And after one night they've kept buried all these years, they stopped speaking altogether.

Now they have no choice but to break their rules if they want the truth about Ruth's death.

Because something isn't right.

The town and life that once felt so safe now simmer with unease.

When tragedy strikes again, Opal knows time is running out. The deeper she digs, the more certain she becomes: whatever truths they uncover might be more devastating than all the lies.

Pulled together by grief and suspicion, the boy she once despised becomes something far more dangerous-someone she can't quite trust, and yet can't bring herself to let go of. Are they ready to face the past they've both tried to forget?

Will might be her downfall...

Or the thing that saves her from it.

Three-million-copy bestselling author Kiersten Modglin returns with a haunting blend of romantic suspense and psychological thriller. This high-angst and totally unpredictable enemies-to-lovers, forced proximity story is dripping with tension, yearning, and shocking secrets that will have you falling desperately in love and obsessively searching for answers with every turn of the page.

Author: Kiersten Modglin
Publisher: Bitter House Publishing
Published: 09/25/2026
Pages: 388
Binding Type: Paperback
Weight: 0.76lbs
Size: 8.00h x 5.00w x 0.96d
ISBN: 9781956538823

About the Author
Modglin, Kiersten: - KIERSTEN MODGLIN is a #1 bestselling author known for unique and unforgettable stories that explore the cobweb-filled corners of human nature. Her stories cross genre lines, inviting readers to follow her into psychological thrillers, domestic suspense, romantic thrillers, mysteries, and emotionally driven fiction. Each novel opens another doorway into the KMod Universe, where ordinary people and seemingly harmless decisions unleash blindsiding consequences. A fiercely independent author, Kiersten has built her career around creative freedom, fearless storytelling, and a direct connection with the readers who have come along for the ride. Her books have sold over three million copies worldwide, been translated into multiple languages, and earned recognition including KDP Select All-Star, ThrillerFix's Best Psychological Thriller Award, Suspense Magazine's Best Book of 2021 Award, and multiple Silver Falchions. From the darkest parts of the human mind to stories of resilience, love, and survival, Kiersten's novels invite readers to explore an ever-expanding world where each story promises to be everything they hope for and nothing they expect. Her readers lovingly coined the name "KMod" early in her career, and it has grown into more than a nickname. It represents a storyteller whose curiosity leads her-and the readers who have joined her-through doors they never expected to open. Make yourself at home here. Look around. Step into the next room. You never know what's waiting for you.