The Primal Instinct series by Rhyannon Byrd is built around the Merrick—an ancient race marked by primal power, dangerous awakenings, and a destiny that ties them to both salvation and ruin. Among them are the Watchmen, warriors whose purpose is to protect the Merrick from enemies outside and from the darkness within. Bound by duty and sacrifice, the Watchmen live at the edge of danger, carrying both physical scars and the weight of responsibility.

Their greatest foes are the Casus, an ancient evil that seeks to dominate and destroy, exploiting Merrick awakenings to unleash chaos. This ongoing struggle forms the spine of the series, threading every love story with a sense of larger, looming peril.

It is within this backdrop that Edge of Danger delivers another darkly sensual installment in Ms. Byrd’s paranormal world, centering on the reluctant pull between Michael Quinn and Saige Buchanan. Tasked with protecting Saige in South America, Quinn has no desire to be saddled with a responsibility that feels far too personal. Betrayed in the past and scarred inside and out, he hides behind walls of iron control—yet Saige, with her fire and determination, chips away at his defenses from the moment they meet.

Quinn is the quintessential tortured hero that Ms. Byrd writes so well. Shifter, protector, and loner, his ability to take to the skies makes him unique even among the Merrick, but it is his guarded heart and mistrust that sets the tone for the slow burn between him and Saige, who for her part, is no shrinking violet. Though she is the “protected” in this dynamic, she pushes back, her mix of strength and generosity proving a foil to Quinn’s cold reserve. It is her willingness to see him for more than his scars that slowly draws them together, even when he resists.

The tension between them is constant, Quinn fighting his attraction and Saige refusing to let him dismiss what simmers between them. His betrayal at the hands of his former fiancée leaves him wary of desire and intimacy, while Saige continues to test his reluctance to engage. Their journey is one of collision as much as connection, Quinn desperate to deny what his body and soul already know.

I loved how Byrd captured the essence of Quinn’s torment, making him a hero readers ache for even when his actions frustrate. Saige’s blend of innocence and tenacity balances his darkness beautifully, and her role as his emotional anchor gives the story its heart. Still, I found myself wishing the ferocity of their appetites translated more fully to the page; too much build-up at times kept the consummation from being as explosive as the tension promised, which really was disappointing.

For all that, Edge of Danger is classic Byrd: lushly written, emotionally fraught, and steeped in the ache of desire barely held at bay. The mythology of the Merrick deepens here, with threads of villainy evolving in ways that hint at bigger battles to come.

Recommended for: readers who love tortured heroes, paranormal romance with emotional punch, and heroines who are equal parts strength and heart.

Final Verdict: Dark, brooding, and beautifully tormented—Quinn and Saige’s story keeps you craving every page.

Purchase Links: Amazon