The war between the thief guilds and the powerful allegiance known as the Trifect has slowly dwindled. Now only the mysterious Haern is left to wage his private battle against the guilds in the guise of the Watcher, a vicious killer who knows no limits. When the son of Alyssa Gemcroft, one of the three leaders of the Trifect, is believed murdered, the slaughter begins anew. Mercenaries flood the streets with one goal in mind: find and kill the Watcher.