My Adopted Sister Stole My Mate Novel Cover

My Adopted Sister Stole My Mate

9.4 / 10.0
In My Adopted Sister Stole My Mate, a true Luna heir returns to her birth pack only to face betrayal. This werewolf romance novel follows her struggle as her parents and destined Alpha favor an impostor. Read this online novel to see her final stand against deception.
My Adopted Sister Stole My Mate Summary
After being switched at birth, the rightful Luna heir finally returns to her pack, only to find her life occupied by an adopted sister. Instead of a warm welcome, she endures systematic betrayal from her birth parents and her destined Alpha mate. Even the Beta who offered her comfort was part of a cruel deception. Pushed to the brink by those who should have loved her, she decides to abandon her pack and leave the cycle of misery behind, seeking a life away from their lies.
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My Adopted Sister Stole My Mate Chapter 1

I was the true-born Luna heir, mistakenly switched at birth, while another had been raised in my place. When I was thirteen, my birth pack found me, bringing me home after a lifetime of being misplaced. But instead of the happiness I deserved, I was met with nothing but betrayal.

My birth parents favored their adopted daughter over me. My destined Alpha was stolen by my so-called sister. The Beta mate who saved me from despair turned out to be part of a carefully laid scheme.

Unloved by my own parents. Provoked by my sister. Abandoned by my Alpha. Deceived by my Beta. Happiness was never meant for me—so why should any of you have it?

Since I can't have it, I choose to leave;

On the night before my fated mating ceremony, I was abducted, degraded, and subjected to two nights of relentless torment.

When my pack finally ransomed me back, the healer delivered a cruel verdict—I might never bear pups.

Without hesitation, my powerful Alpha mate abandoned me, turning instead to the Luna heir who had replaced me—Thalia Lovell.

Whispers spread like wildfire, poisoning every corner of the pack.

Drowning in despair, I sought an escape, choosing to end my suffering in the depths of the river.

As the icy water closed over me, darkness creeping in, a figure plunged in after me—Beta Corwin Graves, my mate’s younger brother. He fought against the raging current, risking his life to pull me back.

When he regained consciousness, his first words shook me—he had loved me for as long as he could remember. More than his own life.

He swore to claim me as his mate, to stand by me, to cherish me forever.

Moved beyond words, I accepted his vow.

Two years passed, and against all odds, I discovered I was with child. Overcome with joy, I rushed to share the news with Corwin.

But just as I stepped forward, their hushed voices reached my ears.

"Thalia lost control and sent rogues after Selene that night."

"Thankfully, you paid a fortune to silence them and protect Thalia’s name."

"And you still took Selene as your mate, knowing she might never bear an heir. We’ve thought it through—"

"You cannot be the last of your bloodline, Corwin. Thalia’s first pup will take the Alpha’s title, but the second heir must come from you."

Corwin’s voice, low and weighted, cut through the tension.

"That won’t be necessary. My brother’s pup will be the sole heir of this pack. As long as Thalia is happy, that’s all that matters to me."

"And Selene… I will spend my life atoning for what she’s lost."

A sickening chill spread through my bones. My breath turned shallow, my body shaking uncontrollably.

So the one who orchestrated my abduction—the one who condemned me to suffering—was my own pack sister, Thalia.

And Beta Corwin… the male who had pulled me from despair… had done so only to shield her crimes.

Even my own blood—my parents—had chosen her over me, casting me aside for the sake of the pack’s honor.

I pressed a trembling hand to my mouth, swallowing my sobs, forcing myself into silence.

Barely holding myself together, I turned and fled.

When I returned to our den, my phone lit up with a message from Corwin.

"Selene, I have a pack meeting tonight. Don’t wait up—get some rest. Love you."

My fingers hovered over the screen, but I didn’t reply.

Instead, my gaze drifted to the keypad of his private study.

In the beginning, when we first bonded, I was haunted by nightmares. I could only sleep when Corwin held my hand.

More than once, I had woken in the dead of night, reaching for him—only to find the bed cold.

He would always be here. Behind that locked door.

Hesitation curled in my chest before my fingers moved on their own, keying in Thalia’s birthday.

With a soft click, the door unlatched.

I stepped inside and froze.

The walls were a shrine.

Photographs, portraits—Thalia, from puphood to now. Every moment of her life meticulously preserved.

The shelves overflowed with relics of her past—gifts, trinkets, tokens of affection that had once belonged to Alpha Leif , his older brother.

Thalia had spent years chasing after Alpha Leif , offering him everything she had, only to be discarded time and time again.

And Corwin…

Corwin had collected everything Leif had rejected. Guarded them like sacred treasures.

A strangled sound escaped me as realization clawed its way in.

When I was thirteen, my birth pack found me, bringing me home after a lifetime of being misplaced.

They had told Thalia to call me sister.

That was when I learned the truth—I was the true-born Luna heir, mistakenly switched at birth, while Thalia had been raised in my place.

For thirteen years, she was the cherished daughter.

For ten more, I was an outsider, always on the outside looking in.

My parents, burdened by guilt, treated me kindly but never like their own.

But Thalia…

She remained their beloved daughter, in every way that mattered.

So when the Graves Pack chose me for an arranged mating, my parents agreed without hesitation.

I never imagined that Thalia had already set her sights on my mate.

She had orchestrated my abduction, had me defiled, all in a bid to take my place.

And my parents… and Corwin… they had known.

And still, they had chosen her.

A sob tore from my throat, raw and agonized, as I collapsed under the weight of betrayal.

Just then, my mother’s name flashed across my phone screen.

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My Adopted Sister Stole My Mate of Contents

Ch. 1 Ch. 2 Ch. 3 Ch. 4 Ch. 5
Ch. 6
Ch. 7
Ch. 8
Ch. 9
Ch. 10
Ch. 11
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