The Orb of Darkness Harbinger

An old gunslinger; Arden is a lost cause the last of his kind who has butchered his way through life whilst hanging onto a promise. Thaddeus a young man with his own agenda resurrects him to go on his last dark adventure bound to eventually doom them all. Everyone is after the legendary Orb; the drahons mankind and Artemis. Time is running out. Harbinger is the first in the series.