The Untamed (Unabridged)

Whistlin' Dan Berry is one of the most interesting characters in Western fiction. With uncanny abilities he controls a wild stallion, appropriately named Satan, and a ferocious wolf dog, Black Bart. Easy going, Berry proves absolutely unforgiving when physically assaulted by a feared, vicious outlaw, Jim Silent. Seemingly without any emotions, Whistlin' Dan is relentless in his vengeful search for Silent and his outlaw gang.
The is the first book in the "Whistlin Dan" series.