For a guide to the reading order of the books, click here.
Marcus Williams and Francis Ackerman Jr. both have a talent for hurting people. Marcus, a former New York City homicide detective, uses his abilities to protect others, while Ackerman uses his gifts to inflict pain and suffering. When both men become unwilling pawns in a conspiracy that reaches to the highest levels of our government, Marcus finds himself in a deadly game of cat and mouse trapped between a twisted psychopath and a vigilante with seemingly unlimited resources. Aided by a rogue FBI agent and the vigilante’s beautiful daughter -a woman with whom he’s quickly falling in love- Marcus must expose the deadly political conspiracy and confront his past while hunting down one of the most cunning and ruthless killers in the world.
Francis Ackerman Jr. is one of America's most prolific serial killers. Having kept a low profile for the past year, he is ready to return to work - and he's more brutal, cunning, and dangerous than ever.
Scarred from their past battles, Special Agent Marcus Williams cannot shake Ackerman from his mind. But now Marcus must focus on catching the Anarchist, a new killer who drugs and kidnaps women before burning them alive.
Marcus knows the Anarchist will strike again soon. And Ackerman is still free. But worse than this is a mysterious figure, unknown to the authorities, who controls the actions of the Anarchist and many like him. He is the Prophet - and his plans are more terrible than even his own disciples can imagine.
With attacks coming from every side, Marcus faces a race against time to save the lives of a group of innocent people chosen as sacrifices in the Prophet's final dark ritual.
Father of Fear
A father returns home to find that his family has been kidnapped and the only way to save their lives is for him to kill another innocent person…So begins a journey that will force Special Agent Marcus Williams of the Shepherd Organization to question all that he believes, unearth his family's dark legacy, and sacrifice everything to save those he loves. In order to stop the serial murderer whom the media has dubbed the Coercion Killer, Williams must enlist the help of one of the world's most infamous and wanted men...the serial killer Francis Ackerman Jr.
The Judas Game
When a correctional officer climbs to the top of his watchtower and opens fire on the inmates and guards, federal investigator Marcus Williams and serial killer Francis Ackerman Jr. must join forces again to unearth the truth behind the incident. What they find is a serial killer using the prison as his hunting grounds. But the Judas Killer's ambitions don't end with a few murders. He wants to go down in history and has no reason left to live.
With Ackerman undercover among the inmates and Marcus tracking down the mastermind on the outside, the team must learn the identity of the Judas Killer and stop a full-scale uprising that he's orchestrated. But the more they learn about what's happening at the prison and why the more enemies they must face. From inside the overrun facility, Marcus and Ackerman must save the hostages and stop an elaborate escape attempt while trying to determine how a rival corporation, the leader of one of the world's most dangerous criminal organizations, and an inmate with no identity only known as Demon fit into the Judas Killer's plans.
Only the Strong
Special Agent Marcus Williams and his serial killer sibling, Francis Ackerman Jr., are on the trail of not just a single murderer, but an entire network of killers for hire. The trail of bodies leads them to San Francisco and a killer going by the codename Gladiator. Their target is working for a ruthless and reclusive syndicate leader, helping to expand the crime lord’s territories through blood. But the Gladiator’s machinations go much deeper than contract killing. Considering himself to be a modern-day Genghis Khan, the Gladiator has a plan to forever carve his name onto the evolution of mankind.
To stop him, Ackerman, Marcus, and the team must plumb the depths of human depravity by diving into the worlds of organized crime, human trafficking, and underground bloodsports.
The Gladiator is undefeated in his arena of death, but he’s also never faced an opponent like Ackerman…
Francis Ackerman Jr. is incapable of fear and addicted to pain, but sometimes stopping the worst of the worst is a job for the best of the bad. Ackerman—an infamous mass murderer now working as a special consultant for the US government—must find a missing member of his team before she becomes the next victim of a serial killer known as the Taker.
With the help of his brother, Special Agent Marcus Williams, Ackerman must solve a twenty-year old cold case that connects to a string of abductions surrounding the Navajo Nation. The investigation leads them deep into the heart of the largest American Indian reservation in the US where a drug runner and gang leader has established his own kingdom in the small town of Roanhorse, NM. With the trail ending in the seemingly quiet town, Ackerman has no choice but to declare war in order to flush out the Taker and rescue the missing member of what he has begun to call his family.
But the threats for Ackerman are not only external. He must also contend with increasingly frequent hallucinations and a growing concern that his symptoms are worsening…
THEY THOUGHT THEY COULD CONTAIN HIM...
THEY WERE WRONG.
Francis Ackerman Jr. is one of the most prolific serial killers in US history. But he's not only a serial killer, he's also a serial escapist. When a doctor who has discovered a ground-breaking treatment for psychopaths wants to test his theories upon Ackerman, the madman sees his chance at freedom. The only people that stand in his way are the hospital's head of security and a young woman with a personal vendetta against the killer.
When a team of Delta operators goes missing in Shenhuang, one of China's newly constructed ghost cities, Shin Dae-jung-Callsign: Knight, is called in to assist. But the Osprey transporting him to the scene falls prey to an EMP attack and is forced to crash land atop a parking garage. With a wounded pilot in tow, Knight explores the empty city for signs of life and finds two terrified children who warn him that something monstrous is stalking the city. When the pilot disappears, leaving a pool of b lood and spent bullet casings behind, Knight doesn't doubt their story. As bullets fly and bodies drop, Knight must protect the children, uncover the fate of the missing Delta team and defend against an unstoppable killer whose ability to regenerate and whose horrible appearance reminds him of something he's faced before-the mythological Hydra. But he's not alone in the surreal abandoned city. A team of SAS soldiers, along with Anna Beck, a former member of Manifold Genetics' private security force, join the fray. Together, they fight against a nightmare that follows its objective to the end: kill them all.
Deacon Munroe is not your average investigator. He's intelligent, cultured, well-connected. And totally blind. Washington DC is Munroe's city. Now it's a city shaken to the core by the death of a high-ranking general and his wife. All the evidence suggests that the general killed his wife before taking his own life. Deacon Munroe does not trust what other people see – only what he knows is true. What Munroe soon knows is that the general's death is part of a far greater plan, a sophisticated and brutal plot to kill thousands of innocent people, including those closest to Munroe himself. But with only a small team at his aid, and just hours to stop a devastating attack on the city, can Munroe unearth the truth in time to bring justice to the city?
The gruesome killing of more than 300 white squatters in a South African village is still unsolved when the alleged assassin enters a storage facility in the US and takes several hostages.
No demands and an obvious play for time leave hostage negotiators on edge. When the FBI is called in, they bring Dr. August Burke, a young man with James Dean looks and a brilliant mind capable of seeing behavioral patterns where others can’t. Unfortunately, Burke hates being around people. Can he put his social anxieties aside and solve the mystery before it's too late?
Together with FBI Special Agent Carter, Burke finds the door to a secret laboratory beneath the storage facility. Is this what the culprits are really after? Soon Burke realizes they are dealing with an enemy who is willing to kill thousands without batting an eye.
Across the globe, Constable Isabel Price picks up her gun and starts the hunt for the killer behind the village massacre, even if that means losing everything. She has no intention on bringing him back alive. Her thirst for revenge leads her to the US, and her path intertwines with the hostage takers.
Between Isabel Price’s quest for bloody vengeance and August Burke’s uneasy gift, Spectrum weaves a web of intrigue and complex characters into an action-packed crime novel.