Talos and Arctus were the Enantiomorph + requisite betrayal. That begot their Mantella, crux of Transcendence, drive core of Numidium. The Mantella was the divine heart of Tiber, their oversoul. All of these men are avatars of Lorkhan. Visitations to Mundus, through various means of entry. These avatars of Lorkhan are the same, except in scale (or power, if you will). Talos was the general Hjalti Early-Beard, united with Ysmir the Graywind. Ysmir was his totem-breath, until Arctus, the Underking, assassinated him (a plot not his own). In the assassination, Talos walked away, but his Voice, Ysmir, left him. Very clear, right?