Caine was the first to kill. There are new blood who follow his ways. They kill. Some for pleasure, some out of hate, some jealousy... and many do it for gold. The red gold of blood. The Assassin's Sourcebook. Dark tales of killers for hire. New core and prestige classes, spells, magic, equipment, variant rules for breaking someone's neck, torture, handling poison, intimidation, garroting and chokeholds; and much, much more.