Zane Grey 
The Spirit of the Border 
A Romance of the Early Settlers in the Ohio Valley

The border needed Wetzel. The settlers would have needed many more years in which to make permanent homes had it not been for him. He was never a pioneer; but always a hunter after Indians. When not on the track of the savage foe, he was in the settlement, with his keen eye and ear ever alert for signs of the enemy. To the superstitious Indians he was a shadow; a spirit of the border, which breathed menace from the dark forests. To the settlers he was the right arm of defense, a fitting leader for those few implacable and unerring frontiersmen who made the settlement of the West a possibility.