The Killer Species Series

Invasive species are devastating the Florida ecosystem. Whether it's pythons and boa constrictors in the Everglades or destructive lionfish on the coastal reefs, non-native animals are causing untold damage to the environment. A scientist, calling himself Dr. Catalyst, has a plan to combat these animals. He's going to create his own genetically altered super predators to halt the spread of the invaders.

Emmett Doyle doesn't want to be in Florida. But his dad is a scientist and he's been called from their home in Montana to assist Dr. Rosalita Geaux, the Everglades National Park Superintendent, to find out why birds and other animals are migrating out of the Everglades in record numbers. What he discovers is shocking. Someone is releasing genetically engineered animals into the Florida wilds.

And when Dr. Doyle gets to close to Dr. Catalyst's work, the deranged environmentalist takes him hostage. Emmett and Calvin Geaux must venture into the heart of the Everglades in an attempt to rescue Emmett's dad. And together they must try to stop a madman from unleashing environmental havoc.

“This is the ideal series for reluctant readers, especially boys, with easy to read short action-packed chapters, terrifying encounters with hybrid gator monsters, crazy escapes and plenty of science. The author effortlessly weaves themes of single parentage, grief, starting over somewhere new and eco-terrorism into the plotline. Future volumes in the Killer Species series promise more of the same.”

~ Mary Thompson for Dragons Who Read on Menace in the Deep

Check out the trailer:

Killer Species: Menace from the Deep

Book 1 of the Killer Species series

Read an Excerpt→

Emmet Doyle is not in the best mood when he arrives in Florida City. His father is a wildlife biologist, and has been summoned to the Everglades, dragging Emmet along with him. Though still in mourning from losing his mom a year ago, Emmet is trying hard to keep a good attitude. Upon their arrival, however, things quickly get weird. Dr. Rosalita Geaux, the Park Superintendent, wastes no time in revealing the reason she called Emmet’s father to Florida. A strange creature was recently found dead in the park, and upon seeing it, it becomes clear to everyone that this is not a native species. This creature is man-made. Deep in the swamp, someone has been experimenting to create a new breed of apex predator. And they’re about to set them loose.

Order Your Copy

Killer Species: Menace from the Deep is available in the following formats:

ISBN: 978-0545-506717

June 25, 2013

→ As an Amazon Associate I earn from qualifying purchases. I also may use affiliate links elsewhere in my site.

Killer Species: Feeding Frenzy

Book 2 of the Killer Species series

Time has passed since anyone’s heard from Dr. Catalyst. Emmet and Calvin have even begun to think that the crazed scientist might be gone for good.

But then, on a trip to snorkel off the Florida coast, one of their friends is nearly drowned by an underwater monster, with endless rows of razor-sharp teeth. No one is quite sure what they saw. Was it a moray eel? A giant barracuda?

There’s only one thing Emmet knows for certain. Dr. Catalyst is back. And this time, he’s out for revenge.

Order Your Copy

Killer Species: Feeding Frenzy is available in the following formats:

ISBN: 978-0545506717

October 29, 2013

→ As an Amazon Associate I earn from qualifying purchases. I also may use affiliate links elsewhere in my site.

Killer Species: Out for Blood

Book 3 of the Killer Species series

Dr. Catalyst has finally come unhinged. Twice the crazed scientist has released his super predators into the wild to combat invasive species, and twice Emmet Doyle and his best friend Calvin Geaux have exploded his efforts.

Now he’s out for something more than just snakes and fish. Dr. Catalyst wants revenge.

It’s a quiet night when Emmet takes his dog, Apollo, out for a walk in the backyard. Until the noise begins. Part batlike screech, part insect buzz — it seems to be coming from the roof. Suddenly the sky is full of dark, beating shapes, and they’re all headed straight for Emmet.

Dr. Catalyst’s newest creations are hungry, and only one thing will satisfy them. Blood.

Order Your Copy

Killer Species: Out for Blood is available in the following formats:

ISBN: 978-0545506762

February 25, 2014

→ As an Amazon Associate I earn from qualifying purchases. I also may use affiliate links elsewhere in my site.

Killer Species: Ultimate Attack

Book 4 of the Killer Species series

The action-packed series by Michael P. Spradlin returns. Each book covers a genetically engineered superpredator wreacking havoc on the environment.

It’s all come to this.

Dr. Catalyst has had enough of Emmet Doyle’s meddling. Time after time, Emmet and his friend Calvin Geaux have stepped in to ruin his plans, just when he’d released one of his genetically engineered killer species into the Florida environment.

This time, Dr. Catalyst is releasing his most deadly creation yet. It’s a terrifying lone hunter, bred to stalk and destroy one specific target — Emmet Doyle.

Order Your Copy

Killer Species: Ultimate Attack is available in the following formats:

ISBN: 13: 978-0545506786

June 24, 2014

→ As an Amazon Associate I earn from qualifying purchases. I also may use affiliate links elsewhere in my site.

Read an excerpt from the first book in the series


Everglades National Park August

The boat slid silently across the surface of the water. At the stern the man turned the tiller to the left on the nearly silent electric motor. The craft responded instantly and he pointed the bow toward a bank of mangrove trees rising up out of the swamp. After thirty yards, he switched the motor off and the boat floated to a stop, the trees another twenty yards away. He flipped on his infrared night vision goggles and studied the trees for heat signatures. Scanning from the far left of the tree line he saw nothing. Then, there it was, a slight movement in the branches of a tree to his right.

The snake was at least twenty to twenty-five feet long. Though reptiles are cold blooded, it still gave off some residual heat from the sunlight it absorbed during the day. Besides, the night vision goggles the man wore were the most advanced in the world. They could detect a heat signature from a burned-out match for three minutes after the flame died. Unlike a warm-blooded mammal, which would show up as bright red in the view-screen, the snake appeared as a light blue image, twisted around the branches of the tree.

He picked up a tablet computer from the console in front of him, touching an icon on the screen. Near the bow of the thirty-foot craft sat two metal cages fastened to the port and starboard sides. Receiving a signal from the tablet, the electronically controlled doors on the cages rose up, and two of his greatest creations, representing years of work, slithered over the side of the boat and slipped into the water.

Were it daytime, and someone could see the creatures swimming toward the trees, they would look like ordinary alligators. But only at first glance. Both were close to twelve feet long and moved effortlessly through the water. They had the familiar snout and scaly skin with bony ridges along the back.

But a biologist or park ranger or anyone more familiar with the species would immediately notice that these two were different. For one thing, most of their bodies rode above the surface of the water rather than below. This was because their lungs were not like those of a normal alligator and were more similar to those found in birds, their distant evolutionary relatives. These lungs held more air, making them more buoyant. When swimming, they floated, though they were still capable of diving beneath the water’s surface and holding their breath for a long time.

The eyes were different as well; less reptilian, sitting higher on the bony structure of the face, and more similar to those one would find on a bird of prey like a hawk or eagle. These alligators possessed superior vision and could even see well beneath the water.

But it was what would happen once they left the water that would send a sense of complete and utter awe through anyone who witnessed it.

The two swimming reptiles hesitated for a moment. This was the most critical part of the man’s experiment, and he held his breath. Another difference between these creatures and a normal alligator was in their elongated neck. Again, it was similar to a bird’s, and they could lift it out of the water, their heads able to move in any direction.

“Come on, my pets,” he whispered, his pulse racing. With no movement by his creations, thoughts of failure entered his mind. In the lab tests they almost immediately zeroed in on their prey. He believed he’d done an adequate job of re-creating the conditions they would face once released into the swamp. But here in the wild, perhaps there were just too many competing odors. His gene splicing and DNA sequencing, which theoretically gave them an enhanced sense of smell, had not accounted for the pungent odors of the swamp.

They floated motionless in the water, moving their heads back and forth. Nothing. He was devastated. He would need to return his specimens to his . . . wait. Something happened. They lowered their heads and swam powerfully toward the trees.

The man would not allow himself to grow too excited yet. The next few minutes would reveal whether his grand experiment to eradicate the Everglades of invasive species would have any chance of working. He found his breath coming in ragged gasps. It was going to work.

And soon the entire world would see it firsthand.

He called these specially altered alligators Pterogators, a name chosen for a specific reason, and soon the whole world would understand why. They reached the bank of trees and silently exited the water. He switched his goggles from infrared to normal night vision to get a clearer view of the events taking place. He pushed another button on the tablet to record the scene before him through his view-screen.

The snake in the tree, fifteen feet above the ground, sensed no danger yet. The two Pterogators split up, each moving toward the trunk of the tree next to where the python rested in the branches above them. They displayed another difference from a normal gator as they walked. These beasts walked on longer legs, each with a more flexible joint in the middle, leading to clawed feet. And claws that were sharper, and far deadlier than those of regular alligators, more closely resembling the talons one would find on a bird of prey.

In the boat, the man couldn’t suppress a grin. It was going better than he could have imagined. He nearly squealed with delight as they walked across the sand, climbing the trees using their clawed feet and jointed legs to pull themselves into the lower branches. They pushed themselves ever upward, using their tails for support. With their improved limbs they were each six feet above the python in a few seconds.

The snake sensed danger, raising its head and flicking its tongue, seeking whatever was out there in the dark. It was at a disadvantage at night. It normally fed on warm-blooded mammals, but these enhanced reptiles now stalking it were cold-blooded they stored heat from the sun, like a reptile, but the man’s changes to their DNA made sure their bodies would not give off enough heat to alert their primary prey. The snake was as good as blind. Its absorbed heat would give it the energy to last through the evening. But it would be sluggish and less aggressive in the dark.

The python moved its head back and forth, slithering down the tree trunk. But it was too late. The Pterogators  leapt from their perches in the nearby trees. As they jumped they spread all four legs and a flap of skin opened, connected to their bodies, just above their knee joints. It allowed them to glide from branch to branch, much like their reptilian ancestors, the archosaurs, navigated the canopy of the Cretaceous forest millions of years ago.

They fell upon the snake, their rakish claws carving into the python. The snake turned and struck the closest beast, trying desperately to sink its fangs into the hard, scaly skin. It had no effect. The python struck again and again but could not find purchase on the creature about to destroy it.

The first bites from the genetically superior creatures were devastating. They bit down with a force equivalent to a one-thousand-pound sledgehammer crushing a watermelon, killing the snake instantly. Though it was already dead, the nerves and muscles throughout its body continued to twitch. The gators continued their work, and in less than two minutes the snake was a mass of twisted scales and flesh.

In the boat, the man pumped his fist in quiet glee. Overjoyed at his success, he pushed another button on the tablet and a homing beacon attached to the cages at the bow started pulsating. The signal was transmitted to collars attached to his pets. They scurried down the tree and hurried across the sand, silently entering the water. In a few minutes they reached the boat and crawled back into their cages. The doors slid shut.

The man smiled. His first field test was a complete success. At last he had discovered the answer to the Burmese pythons and the boa constrictors destroying his beloved Everglades. For years he used his status and position in Florida to seek a solution through the government, private foundations, and his own organization, but his suggestions always fell on deaf ears.

Luckily, he had access to resources and the scientific knowledge to bring his plan to reality. He would save the delicate ecological balance of the Everglades. Soon he would prove that his methods were not in vain. He would go down in history with men like John James Audubon, John Muir, and Henry David Thoreau. Men who devoted their lives to saving the land and its creatures.

Soon the world would know his name.

Not yet. But soon.

Order Your Copy

Killer Species: Menace from the Deep is available in the following formats:

ISBN: 978-0545-506717

June 25, 2013

→ As an Amazon Associate I earn from qualifying purchases. I also may use affiliate links elsewhere in my site.