The Harding Sisters Duet Series by A.R. Carlson

A wounded soldier. A hidden identity. A love that defies the rulesWren Harding came home in pieces—scarred, broken, and determined to keep her ghosts buried. Once a top Army medic, now she fights a different kind of surviving the pain, the past, and the quiet suffocating weight of recovery. The only place she finds peace is the bookstore she shares with her twin sister, Isla… and the memory of the masked soldier who carried her out of hell.“We used to be mirrors of each other... moreA wounded soldier. A hidden identity. A love that defies the rulesWren Harding came home in pieces—scarred, broken, and determined to keep her ghosts buried. Once a top Army medic, now she fights a different kind of surviving the pain, the past, and the quiet suffocating weight of recovery. The only place she finds peace is the bookstore she shares with her twin sister, Isla… and the memory of the masked soldier who carried her out of hell.“We used to be mirrors of each other. Now Wren calculates each step, counting the cost before she stands.”Miles Walker is used to staying in the shadows. As a Special Forces operative, he’s sworn to protect secrets, not get involved—especially not with the sister of the woman he once rescued from a burning convoy. But when a chance encounter leads him into Isla Harding’s quiet world of old novels and sharp wit, he’s caught between duty and a connection he can’t ignore.Isla doesn’t trust easily, but there’s something about Miles she can’t shake. He listens like he’s used to silence. Watches like he’s carrying more than he says. And holds her gaze like it means something.As Wren begins to unravel the mystery of the soldier who saved her, Isla and Miles are drawn deeper into each other’s orbit—just as old wounds, military secrets, and fragile trust threaten to destroy everything they’re building.“You screw with one of them, you bleed both.”Heartfelt, slow-burning, and emotionally raw, When He Found Her is a military romance about survival, sisterhood, and the kind of love that finds you when you’re not looking—but need it most.“He’s just... interesting. Different. He listens like there’s nothing else he’s supposed to be doing.” This book contains explicit sexual scenes and is not recommended for those under the age of 18 years old. Please check the content warning page at the beginning of the book. Some scenes may be highly triggering.“You’re not just her sister, sweetheart. You’re her anchor.”military/civilianprotector romancebookstore romancesecret identity/masked manquad POVmilitary secretssisterly bond/twin sisterswounded heroinebrother's teammateone couple falls fast/one couple falls carefullytwo parallel love storiesAuthor's This book ends on a cliffhanger. It is continued and finished in When She Knew. less

The conclusion to The Harding Sisters Duet...Quiet booksellers, soldiers with secrets, and love stories built between the lines.A slow-burn, high-heat military romance about surviving the wreckage, choosing love, and holding on when everything shifts.Two sisters.Two soldiers.One year that changes everything.“You haven’t written me out of your story yet, have you?”Wren Harding never wanted to see him again. Not because she doesn’t remember what he did... but because she remembers all of it... moreThe conclusion to The Harding Sisters Duet...Quiet booksellers, soldiers with secrets, and love stories built between the lines.A slow-burn, high-heat military romance about surviving the wreckage, choosing love, and holding on when everything shifts.Two sisters.Two soldiers.One year that changes everything.“You haven’t written me out of your story yet, have you?”Wren Harding never wanted to see him again. Not because she doesn’t remember what he did... but because she remembers all of it.Alder Bowen was the one who pulled her broken body from the Humvee. The one who carried her through fire. The one she clung to in the moment everything nearly ended.Now, months later, he’s back. And no matter how hard they try to keep their distance, gravity keeps dragging them into the same orbit. There’s no protocol for this. No roadmap for healing. Just tension, secrets, and the slow, burning Can love grow in the space where pain lives?“I don't want soft." "Then take what you need.”Downstairs in the quiet rhythm of the family bookstore, Isla Harding, now Isla Walker, is building a future with Miles Walker, a man who listens like he’s memorizing her and holds her like he never plans to let go. But with his next deployment looming, and the memory of Wren’s injury still casting shadows, Isla is starting to How do you build something lasting when the clock keeps ticking down?“You’re already so loved. -Dad”Wren and Isla are stronger than anyone knows. But love is a risk, even when it’s the thing that saves you.Tense, romantic, and emotionally layered, When She Knew is the second installment of The Harding Sisters Duet, a military romance about found family, unspoken wounds, and the kind of love that waits patiently until you're ready to feel it.“I’ll come back. I promise.”💥 sisters/two soldiershurt/comfortbookstore romancebrother’s teammateprotector romancequiet girl/guarded soldierfound familyquad POV / dual romance arcmilitary deployment countdownsurprise pregnancyone couple falls fast / one falls slowthe trauma doesn't get brushed aside, and neither does the heatBook Two of The Harding Sisters Duet picks up after When He Found Her and concludes the intertwining stories of Isla & Miles and Wren & Alder. You have to read Book 1 first for this book to make sense. This book contains explicit sex scenes and is not recommended for those under the age of 18 years old. Please check the content warning page at the beginning of the book. Some scenes may be highly triggering. less