Twin gang leaders spell double trouble for Farrell Donovan and the newly expanded Night Vipers. When unexpected help comes out of the blue from an old enemy, will Farrell be able to accept it? Find out when you read Full Throttle.

When one of Farrell's informants reports seeing macabre transactions on the dark web, the Night Vipers take action. With almost nothing to go on, and the body count escalating daily, can Farrell, Blaine and Jesse figure it out? Read Organ Grinder today and find out. You won't be disappointed!

While the Night Vipers pitch in to help Annie with a classified mission she'd rather have no part of, a female professor goes missing from the University of Texas. Blaine and the Blackmore Agency crew dig deep into the kidnapping and with Misty's help, they uncover astonishing details. Don't miss Mortality Rate.

An assistant DA is murdered days before she's ready to go to trial on a mutil-million dollar fraud case. The motive isn't obvious, but not nearly as hard to find as the killer. Follow Farrell, Blaine and the Night Vipers as they struggled to uncover the truth. Read Felons today.

While Farrell and the Night Vipers are involved in tracking down a serial killer who preys on university students, Blaine is called upon to help a small-town sheriff solve the bizarre murder of a teenage girl. The Agency soon becomes embroiled in a feud between two rural families far from the city. How many lives will be lost before the feud comes to an end? Read Bad Blood to find out all the answers.

When a member of an exclusive club in Austin is mysteriously murdered by a poison dart, the Night Vipers are called into action. Plagued by personal problems, Blaine, Farrell, and Jesse have to set other issues aside to focus on the baffling murder case. Read Dart Game to experience all the action.

A convicted spree killer is released from a criminal psychiatric facility when his doctor feels he is ready to re-enter society. Trace Westerman has no intention of trying to fit in when he returns to his home town in Texas. He has one thing on his mind and that's getting even.

A flood of inmates released early because of overcrowded conditions in Texas prisons puts added pressure on the Night Vipers and the Blackmore Agency. Complicate that situation with an unknown stalker threatening the governor and Blaine and Farrell are stressed to the max. Read Early Release to see how it all plays out!

A wealthy and powerful Dallas oil executive is found floating in his own lap pool. Was it an accidental drowning like his family is claiming? The medical examiner rules Dan Lansberg's death as suspicious and the Violent Crime Agency takes over. As the investigation heats up, Jesse, Blaine, and Farrell along with the Agency crew uncover family secrets better left buried.

Apart from the cases the Blackmore Agency is working on, Blaine is given a highly classified job of finding a suspected serial killer. Girls in their early twenties have mysteriously disappeared all across the country but no bodies were ever found. Misty brings her skills to the case and together she and Blaine try to make the puzzle pieces fit. But do they fit? Read Carnage to find out.

Ranger Farrell Donovan lends a member of the Night Vipers' squad to an undercover operation aimed at catching an elusive serial killer. In the blink of an eye, the operation takes an unexpected turn and quickly goes from worse to complete disaster. Blaine, Farrell, and the team are playing catch up all the way to the end. But is there an end? Don't miss the wild ride in Fightin' Dirty.

The Governor of Texas comes up with another of her 'Down on Crime' initiatives and the work involved pushes the Blackmore Agency and the Night Vipers to the limits. A murder in Fort Worth hits a little too close to home and Farrell and his team rush to help Farrell's brother Neil. Be sure to read how murder and mayhem play out in Third Strike!

A call for help from a remote west Texas village propels Farrell and the Night Vipers into a bloody battle against the same bike club he escaped from years before. Farrell faces his past and needs to even some scores. Rescuing a woman in distress turns into an affair almost too hot to handle-even for Farrell. Don't miss Coyote Moon!