Mark Greathouse

Blood runs hot beyond the Nueces Strip. Texas Ranger Lucas Dunn, Jr. (“Junior”) rides deep into the heart of South Texas in 1896, where the Guadalu...

In the unforgettable final chapter of The Frontier Chronicles, war isn’t just on the horizon—it’s here. And Jack O’Toole must rise to meet it. At t...

The Nueces Strip is no place for a young Texas Ranger to earn his stripes. Lucas Dunn, Jr. has spent his life in the shadow of a legend—but now the...

In this thrilling Young Adult Western Fiction adventure, the seventh chapter of The Frontier Chronicles rides hard into the heart of danger, where ...

The Nueces Strip calls him back one last time. Two decades after stepping away from the Texas Rangers, Luke Dunn is done with war, bloodshed, and t...

The Nueces Strip bares its unforgiving soul. In the turbulent final years of the Civil War, the Texas frontier is a powder keg of lawlessness and s...

War rages across the Nueces Strip. As the War Between the States engulfs the nation, Texas Ranger Captain Luke Dunn finds himself on a perilous fro...

The unyielding sixth chapter of The Frontier Chronicles thrusts readers into the tumultuous prelude to the Civil War, where Jack O’Toole’s faith, g...

Blood spills freely on the Nueces Strip. Texas Ranger Captain Luke Dunn’s life is forever entwined with the rough and tumble prairies of the Nueces...

The relentless fifth chapter of The Frontier Chronicles sweeps readers back to the unforgiving American West, where Jack O’Toole’s loyalty, enduran...

The gripping fourth installment of The Frontier Chronicles plunges readers into the unforgiving wilds of the American West. As Jack O’Toole faces t...

Deceit is a dangerous game on the Nueces Strip. Texas Ranger Captain Luke Dunn is fighting for justice. Amid the dangers of the Texas frontier—from...

Climb into your saddle with Longhorns North: Jack’s Great Trail Drive, the third spellbinding installment of The Frontier Chronicles YA series. Now...

The Nueces Strip isn’t for the faint of heart. An immigrant-turned-lawman, Texas Ranger Captain Luke Dunn is doubling down on his quest to deliver ...

Wyoming Calls: Jack’s Risky Quest, the second gripping installment of The Frontier Chronicles, plunges young Jack O'Toole into a daring adventure f...

Step into the rugged Texas frontier of 1855 with fifteen-year-old Jack O’Toole in this thrilling first installment of a gripping YA Western series....