THE FRONTIER IS UNFORGIVING. BUT THE MANIAC INSIDE HIM IS WORSE.

Sovereign Warden John Wonder was built for the dark.

Armed with a customized Springfield 1911 and a willingness to go farther than anyone else, he polices a Texas frontier where viral parasites, occult anomalies, and human monsters stalk the shadows. Every day is a war against things that shouldn't exist?and against a body that's slowly failing him.

Then a massacre leaves Midland City drowning in blood.

The architect of the carnage is known only as Stone Pane?a centuries-old predator surrounded by fiercely loyal followers and driven by motives no one can decipher. As bodies pile up across Texas, John is pulled into a deadly hunt that exposes buried secrets, powerful corporate interests, and wounds from his own past that refuse to stay buried.

With the frontier spiraling toward chaos, John finds himself chasing an enemy who is always one step ahead and willing to sacrifice anyone to achieve his goals.

Because some monsters want power.

Some want immortality.

And some leave a trail of bodies behind them.

To stop what's coming, John Wonder will have to confront the darkness stalking Texas?and the maniac inside himself.