Crazy Hawk — R.J. Stewart

Deirdre lives for one purpose: to get her sister back. Riding her Soul Horse, Danny, she relentlessly pursues the kidnappers through an America wrecked by the Great Virus and endless civil war. She's forced by circumstances to ally with a nomadic photographer. His gentle decency moves her to the core, but her mission leads her away from the man she's falling in love with and toward a confrontation with the people who hold her sister. To defeat them, she'll need the help of the powerful Nations, a league of indigenous tribes. But there's a problem. The Nations consider Deirdre a deadly enemy. They've even given her a nickname that signifies their grudging respect for this ferocious adversary. Crazy Hawk.