A Portland activist ventures into rural militia country to face a threat from his past in this crime thriller by the author of the Kaspar Brothers series.   Greg Simmons is an idealist. From his home in Portland, he's a major proponent of the Cascadia independence movement. All of which makes him an unlikely informant for the FBI. But when the Bureau calls on Greg to investigate a dangerous militia group in rural Oregon, he knows exactly why: his old friend Donny Wilkie is likely involved.    Greg and Donny have been estranged for years. But if Donny's involved in something dangerous, Greg intends to pursue the threat on his own—because he needs to make sure Donny never unearths the dark secrets they buried years ago.   In the remote town of Pineburg, Greg is a fish out of water. As he grapples with dangers both old and new, he and Donny must come to a new understanding . . . or face the deadly truth of their shared past.