Rhino Horn Underground: A Thriller That Made Me Miss My Bedtime

Grab your coffee and get comfy, because I just finished a book that kept me up way past my normal wind down time, and I have so many thoughts. If you know me, you know I usually gravitate toward slow living reads, the kind of books that feel like a warm bath for your brain. This one was the opposite of that, and honestly, it was exactly the jolt my reading list needed.

Rhino Horn Underground by Deven Greene landed in my hands during a week when I was craving something with a pulse. I had just wrapped up a string of gentle memoirs and cozy mysteries, and my brain was itching for a little chaos. This book gave me chaos in the best possible way, wrapped in gorgeous South African scenery and a moral dilemma that stuck with me long after I closed the last page.

What follows is my honest take on the story, the writing, and why I think this one deserves a spot on your nightstand. I am not going to pretend I read this curled up with herbal tea and a candle, because I absolutely tore through it with my heart racing. Let us get into it.

Why This Eco Thriller Hooked Me From Page One

The opening chapter of Rhino Horn Underground does not ease you in. Paige Remington, a journalist trying to save her career, finds herself with a machete against her throat within the first few pages. I read that scene twice because I could not believe how fast the tension escalated. There is no slow build here, no gentle introduction to the world. You are thrown straight into the wildlife reserve ambush alongside Paige, and it works.

What impressed me most was how grounded the violence felt. Deven Greene has a background in biochemistry and pathology, and you can feel that precision in how she describes injury, adrenaline, and fear. The blood spray from the rhino, the superficial machete wound on Paige’s arm, the way panic distorts time. It all reads like someone who understands the body under stress, not just someone imagining it.

By the time Spencer, posing as a mild mannered tourist named Ethan, reveals his FBI identification, I was fully hooked. That twist alone made me want to keep reading past my bedtime, which for someone who values a wind down routine as much as I do, says a lot about this story’s grip.

The Moral Gray Zone That Makes Rhino Horn Underground Unforgettable

What sets this book apart from a typical crime thriller is the ethical tangle at its center. Paige is not a simple hero chasing a simple villain. She is ambitious, sometimes reckless, and willing to bend the truth to save her career. Spencer is not a straightforward rescuer either. He claims to be protecting rhinos while Paige increasingly suspects he might be profiting from the very trade he says he is fighting.

Literary Titan described the book as a bristling, brainy thriller that asks whether doing the right thing still counts when the path to it runs through the shadows, and I could not agree more. That question sat with me for days after finishing. How far would any of us go for a story, a cause, or survival, if the person guiding us cannot be fully trusted.

Indies Today called it a fascinating look at an ethically fraught topic, and that fraught quality is really the heartbeat of the novel. Rhino poaching is not treated as a black and white issue. Traditional beliefs, economic desperation, corruption, and conservation efforts all collide, and Greene refuses to hand readers an easy answer.

South African Setting That Feels Vividly Real

I am a sucker for a well rendered setting, and Rhino Horn Underground delivers atmosphere in spades. The wildlife reserves, the dusty roads outside Richards Bay, the tension of driving through brush while being chased are all so vivid that I found myself pausing to picture the landscape. It gave the story a documentary like quality, which fans of true crime content, like me, will especially appreciate.

The pacing through these settings never drags. Even the quieter transitional scenes carry an undercurrent of danger because you know poachers, corrupt officials, or something worse could appear at any moment. That constant hum of unease kept me turning pages faster than I expected for a book grounded so heavily in real world issues.

Greene also weaves in details about the rhino horn trade itself, the black market demand, and the brutal realities poachers and rangers face daily. It never feels like a lecture. Instead, it feels like Paige’s own education unfolding in real time, which mirrors the reader’s experience perfectly.

Should You Add Rhino Horn Underground to Your Reading List

If you love international crime thrillers, wildlife fiction, or stories that force you to sit with discomfort, this book belongs on your list. Readers’ Favorite called it one heck of a wild ride, and D. Donovan from Midwest Book Review praised how Greene captures the costs of stretching the truth alongside the politics of poaching. Both of those reviews match my own experience exactly.

This is not a light beach read, but it is the kind of book that rewards attention. The 307 pages move quickly, and the eco thriller elements never overshadow the human drama between Paige and Spencer. If you have read Greene’s other work, like The Erica Rosen MD Trilogy or The Organ Broker, you already know she brings scientific credibility to tense, high concept stories. This one continues that tradition beautifully.

Rhino Horn Underground releases on August 25, 2026 from Panthera Publishing, and I think it is going to spark a lot of conversation among readers who care about conservation, ethics, and morally complicated characters.

My Final Thoughts on This Wild Ride

I closed this book feeling unsettled in the best way, still turning over questions about loyalty, ambition, and how easily good intentions can blur into something darker. Paige’s journey from a struggling journalist to someone fighting for her life in the rhino horn underworld is the kind of arc that sticks with you, especially because Greene never lets you fully trust anyone, including Paige herself.

If you want a break from slow living content and crave something with teeth, this is your sign to pick it up. It is thoughtful, tense, and grounded in real conservation issues without ever feeling preachy.

I would love to hear what you think once you read it. If you enjoyed this review, I have plenty more book breakdowns and lifestyle posts waiting for you around Nevermore Lane, so stick around and explore a few more. And if you just want to chat about thrillers, rhinos, or anything else on your mind, come join me for coffee soon. I would love that.

Like what you read? Drop me a line – let’s chat over virtual coffee.

~ Chrystal

RHINO HORN UNDERGROUND

by Deven Greene

August 10 – September 4, 2026 Virtual Book Tour

Synopsis:

Struggling journalist Paige Remington leaves San Francisco for South Africa, determined to revive her failing career with a hard-hitting exposé on rhino poaching.

Danger strikes almost immediately when poachers ambush Paige’s tour group. She survives only because she is rescued by Spencer, a man who claims to work for the FBI. He says he wants to save the rhinos and offers to help her with her story, but as he exposes her to a world she would never see on her own, she becomes embroiled in the brutal underworld of the rhino horn trade herself. Paige discovers that Spencer is not who he claims to be, and suspects he’s in the rhino poaching business himself.

Caught between her ambition and her survival, Paige must decide whether to continue learning about the world of rhino poaching from Spencer and risk becoming the next casualty, or leave for home while she still can.

Praise for Rhino Horn Underground:

“Well, that was one heck of a wild ride! . . . Readers who love international crime thrillers and wildlife fiction will adore this book. Very highly recommended.”
~ Readers’ Favorite

“Rhino Horn Underground is a bristling, brainy thriller that asks whether doing the right thing still counts when the path to it runs through the shadows.”
~ Literary Titan

“A fascinating look at an ethically fraught topic, Rhino Horn Underground underscores the collision of traditional beliefs and modern realities…an action-packed thriller!”
~ Indies Today

Book Details:
Genre: Eco-Thriller
Published by: Panthera Publishing
Publication Date: August 25, 2026
Number of Pages: 307
ISBN: 9781964620107 (ISBN10: 1964620104)
Book Links: Amazon | Kindle | Goodreads | BookBub

Read an excerpt:

Chapter 1

With the hot sun blazing above, I strain my eyes as hard as I can to look downward, but the blade pressed against my throat remains out of sight. My pulse is racing, and my breathing is so fast I can only gasp. Is that a trickle of blood I sense slowly making its way down my neck, or is it my imagination? Below and to my right, a hand holds a well-worn machete handle. That hand is attached to the muscular forearm of the man standing behind me, ready to end my life any moment. I don’t know what he looks like—it all happened so quickly—but I know he’s a Black man with a thick African accent. He’s telling me to hold still. As if I would do anything other than that right now. I clutch the cell phone in my hand, wondering if I caught anything useful on the video I’d been shooting moments before. Is the camera still running? If my phone were found, the identity of the man holding me would be revealed to the authorities who were sure to investigate later—too late to save me.

Our guide and four others on the tour of the wildlife reserve lie dead on the bare earth ten feet away, each in a pool of their own blood. As I take in the scene, a second Black man holding a rifle shoots the veterinarian who had been speaking to us. Now with a large hole in his chest, the veterinarian, armed only with a vial containing an animal tranquilizer, staggers and falls.

I think of my husband, Quinn, thousands of miles away from this South African wildlife reserve—probably asleep, oblivious to the fact that he is about to become a widower.

The two attackers yell back and forth. They seem to be having a disagreement, but I don’t understand their language. The man with the rifle raises it. I wince and brace myself for impact, but instead of aiming at me, he fires at the rhinoceros in a nearby pen. Blood and tissue—hide, bone, and brain, I suppose—spray from the back of the animal’s head. I watch in shock as the massive creature emits a haunting wail and falls.

A fraction of a second later, another shot rings out, this one quieter. I freeze as the man standing behind me collapses. His machete nicks my arm before he hits the ground. A second shot is fired, and the man who just murdered the rhino falls.

Who did that? Am I safe? I’m shaking as I slowly turn, just as Ethan, the only other surviving member of our group, grabs my arm and yells, “Let’s go!”

With no time to think, I struggle to keep up as I let him drag me. I check my arm where the machete cut it—it’s only a superficial wound oozing a small amount of blood. Ethan tucks the large pistol he’s holding into his waistband while racing toward the dead rhino. My heart is already pounding when loud voices—African voices—approach from heavy brush close by.

Ethan stops and appears to think for a moment, as my heart revs so hard I feel my chest will burst. After the brief pause, he pulls me along again, but in a different direction, now heading towards the body of the dead man who shot the rhino. He drops my hand to search the killer’s pants pockets, pulls out a set of keys, then snatches the rifle lying in the dust nearby. Motioning me to follow, he dashes to the small parking lot and jumps into the driver’s seat of an open, doorless jeep that wasn’t there when we arrived. I don’t know this man, but I scramble into the passenger side as fast as I can.

Ethan guns the engine and heads out of the park. My mind is speeding as I struggle to fasten my seat belt, hoping I don’t fall out the side of the vehicle before I get it secured. Who is this guy I met this morning and know only as Ethan? All I know is what I can observe—he’s an average-looking middle-aged White man with a dark tan and thick black glasses, dressed in gray cargo pants. His belly is covered by a dull gray, loose-fitting, long-sleeve shirt with breast pockets and front snaps, hiding the paunch underneath. His gray bucket hat hides his hair, if he has any.

He told our group his name as we left Richards Bay that morning for the two-hour drive to the wildlife reserve in the eastern part of South Africa, where we would see several rhinos and witness the horns being sawed off of one. While the other travelers and our guide were lively conversationalists as we traveled the dusty roads, Ethan remained silent, seemingly uninterested in the scenery. I had written off this milquetoast of a man as someone who was there only because he wanted to take pictures to show people back home, hoping to convince them that he was an interesting person.

Now I’m wondering: Who carries a gun under his shirt when on vacation to view wildlife? And who would be able to fire it so accurately, so swiftly?

I finally snap my seat belt and study him. He stares ahead as he removes a device from his shirt pocket and places it on the dash.

“What’s that?” I ask.

“GPS device.” Moments later, he veers off the main road. Small trees and bushes snap under the jeep.

Not sure what to do, I ask, “What about those people? And the rhino?” Stupid, I know.

“They’re all dead. No time to waste. More were getting close to us.”

“More what?”

“More poachers.”

“How do you know?” I ask.

He glances at me as if I’m an idiot. “I just know.”

“Were you going to take the horns of that rhino?” I know it’s a crime, and I don’t want to sound accusatory, but I can’t imagine any other reason he would start to run toward the deceased animal.

His face tightens and his eyes narrow. “What if I was?”

Now I’ve gotten him mad. I need to change the subject. “Where are we going?”

“I’m getting us to a safe place.”

“I really appreciate what you’ve done, but wouldn’t it be best to head back to Richards Bay?”

“It’s not safe. There’s more where they came from.”

“How can you be so sure?”

Ethan reaches into his right breast pocket and pulls out a leather case a little larger than a credit card. He throws it my way, and it lands on my lap. I gasp as I lift the front flap and see his identification. His name isn’t Ethan, but his picture is on the plastic ID. The man sitting next to me is Spencer Crenshaw, and he’s an FBI special agent.

***

Deven Greene | Author Bio:

Deven Greene lives in Northern California near San Francisco. She has a PhD in biochemistry, a medical degree, and spent over twenty years practicing pathology. She uses her education and background to craft realistic novels, primarily thrillers, grounded in science and/or medicine. Many are high concept, and some can be considered hard science fiction. Her published novels include The Erica Rosen MD Trilogy (Unnatural, Unwitting, and Unforeseen), Ties That Kill, The Organ Broker, and Happy Sun Farm.

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