Sky Ice - E. G. Sparks - Bog

There's no negotiating with evil.
You either fight it, or you get consumed by it.

When eighteen-year-old homeless orphan Arien Blair heads out to a friend's place at the junkyard, she hardly expects to stumble upon a two-story-long worm and a man with a swirling blackness in place of the face. Three brawny men with wicked weapons step in between her and the beings out of this world and fend them off with lethal precision.

Within twenty-four hours of the freakish encounter, Arien finds herself in a cruel world of angel-descendant warriors called Earthbounders who hunt an unauthorized demonic presence on Earth. She's told she's one of them, a lesser Earthbounder called secondborn.
When an ancient evil-an Archon known as Bezekah-attempts to return to the Earth realm and sets his sights on Arien, it's a race against time to stop him. Arien discovers what he's after and risks it all to protect the obnoxious warrior race from annihilation. After all, without the Earthbounders, humanity will stand no chance against the evil waiting to be unleashed.

This spell-binding adventure with the elements of good vs. evil, demon hunters, angels, fae, magic, and a slow-burn romance is perfect for the fans of The Mortal Instruments and Shadow and Bone.