Only the Strong — David Thompson

Nate and Winona King know the frontier is a dangerous place. Even more so for a family of runaway slaves. The Kings thought they saved their new friends from the worst of their troubles, a gang of vicious slave hunters. But two of the hunters survived--and have hired a seasoned frontiersman and four killers to track the Kings and the runaways down. Nate and Winona continue to lead their party across the vast prairie to the far distant Rockies. Little do they realize that a pack of two-legged wolves are nipping at their heels...and that eventually the prairie will run red with blood.