Outlaws of Olympus — C.E. Martin

The Greek gods have returned! Descending upon the Wild West, these supernatural charlatans have set out to terrorize and torment sinner and savage alike. But one man stands against them -- the son of Zeus, formerly known as Herakles. Now a man of faith, serving the Church for centuries after his conversion, Father Sergio Ercole Morricone searches the West for his Olympian family, trying to save those he can and end the immortal evil of his brethren...

Father Ercole and John Black have joined forces with an unlikely character from the wilds of Canada: Gerard Michel Baptiste, a larger-than-life hunter of big game. Baptiste and his Chippewa partner are headed further east into Colorado to hunt a beast of legendary proportions--a great white buffalo. Larger than any such creature ever before encountered, the great bull is purported to be able to derail steam locomotives. But is this massive monster a freak of nature, omen, or something else entirely?