The world of Slavic immortals has never been darker 

Attempting to uncover the creature behind a brutal mass murder, Rose and her pack are drawn into the stirrings of a war no mortal was supposed to fight. Not even those of the supernatural variety.

With the nature of the killings obstructing the normal passage of souls, Rose has to team up with Veles, the god responsible for their safekeeping. With his aid, she learns of the pack's true lineage, but accepting the truth seems just as hard as resisting the sultry, arrogant lord of the underworld.

To prevent more deaths, the pack must ascend to The Dark Ones.

But their rise to power won't be without consequences.

Fans of mythology and urban fantasy of epic proportions will enjoy the ride into realm of Kolovrat, where folk tales, reality, and steamy romance come together into a story you won't want to put down!

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The ascension to The Dark Ones had brought Rose and her pack power. But it had also brought peril.

With the higher immoral circles assessing their every move, the pack has to keep their heads low and their presence within the wider community beneficial. So when someone starts targeting the twentyfourhourlies, the werewolves waste no time coming to their aid.

But what had first been merely an assignment to remain in their leaders' good graces turns a mission the pack know they will follow through to the end. Even if it means doing the one thing they had sworn to never do. 

Reveal their true strength.

Don't miss out on the thrilling sequel to THE DARK ONES!

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When darkness rises

Rose knows she's running on borrowed time. Tendrils of dark magic are twisting their way into Ljubljana's underbelly, her father's brethren out for her blood. 

The Dark Ones are not only powerless to prevent Rose's title of Death incarnate from spreading through the community, but their struggle to maintain peace among the supes is spiraling down at a neck-breaking pace.

Since anybody who stands with the pack is guilty by association, the only choice the werewolves have left is to let their lethal nature surface.

Turning into what they had sworn not to become is, after all, a small price to pay to keep those they love from being executed.

Join the pack on their next adventure as the stakes get higher!

Get your copy of THE SHIFT today!


The end of an era

The pack knows Ljubljana's sun-kissed streets will taste the touch of death. But whether they will walk upon them victorious or mar them with their own blood is a guess nobody dares to make. 

Caged in the promise of war and with enemy forces pressing in from all sides, they struggle to keep ahead of the Upirs' twisted game. But when the opposition changes the rules, the pack must face a harsh truth. 

The only way they can hope to fight chaos is with chaos of their own.  

But will their actions be any kinder to the world from what the Upirs hope to unleash? Or will they bury humanity in the rubble of battle all the same?

THE ASCENSION is the thrilling, explosive finale to the Black Werewolves series that will keep you turning the pages until the very end!

Grab your copy today to start reading!


Eternal health. True love. Access to wealth.

The Fire Flower grants it all to the one who retrieves it on the night of the summer solstice.

To Sander, the quest to obtain the mythical plant is nothing more than a means to get the old crones running his coven off his back. But the Koldun finds himself facing more than the dangers of the solstice as a mysterious woman asks for his aid.

A woman that not only breaks through his glamor but makes Sander question everything he had believed himself to be.

NEVER FORGOTTEN is a prequel novella to the Black Werewolves series, offering you a glimpse into Sander's past!

Head over to Amazon to start reading today!


Not all wounds come from claws or fangs

Although Katja is more than ready to meet Jürgen's family, she feels the need to share the shadows of her past first.

As they travel to Munich, Katja has to fight her fears and open up to Jürgen if she wishes to truly, wholly share her life with the werewolf she loves.

But her visit with the Freundenbergers brings more than just a heart-to-heart as Katja finds herself in the middle of a situation that seems frightfully like an echo of her deepest nightmares.

CHASED is a Jürgen and Katja novella that takes place between THE 24HOURLIES and THE SHIFT.

Want to see their relationship develop? Then grab your copy today!


The world of Slavic immortals has never been darker 

Enter the world where myth becomes reality.

Where long-forgotten gods walk the earth.

And where love forms bonds that cannot be broken even in the raging winds of battle.

Box set contains all four full-length novels in the Black Werewolves series.

Gaja J. Kos

Gaja J. Kos is a USA Today bestselling author with a mission to breathe fragments of Slavic lore onto many, many pages of fiction.

She is also a bisexual witch who grew up watching Xena, Charmed, and Buffy the Vampire Slayer. No one is really too surprised about the direction her adult live ended up taking.

She enjoys steamy books and steamier music, has an endless love for starry nights, and is a shameless summer babe with a soul-deep palm obsession.

Gaja resides in Celje, Slovenia, with her husband, two Chinese Crested dogs, and many, many plants.

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