The Reavers

The Reavers are mortals of great power and skill who arose out of the Great War, fed up with the destruction wrought by tyrannical god-like beings. They set themselves to hunt and slaughter every immortal they could find, and vowed that never again would they bend to an Aesir or a Vaenir: they would protect the world and the freedom of mortalkind. Their aims in the present age still run to that vow.

A nearly immortal Celeste is exactly the kind of being the Reavers swore to destroy — the more so because a Celeste can be mistaken for one of the Vaenir. In the age after the war, as the Reavers coursed over the rivers and lands, many Celeste kept to the cloak-form and stayed hidden in the trees rather than face them.