Atomic Spirit

Atomic Spirits (sometimes referred to as Nuclear Elemental s by the Glass Walkers) are spirits of the Wyld and the Weaver that represent limitless nuclear reactions - opposed to the focus on radiation of the Wyrm and its minions.

The mystery of these spirits is compounded by the depths of their knowledge: They understand much of the Wyrm and the basic structure of the universe, for their kind existed at the beginning of all things — though they laid dormant until humanity unlocked the power at the heart of the atom. They are willing to bargain with Garou in exchange for their freedom - meaning the destruction of the reactor that traps them.

Reference

 * , p.449-450