Deadly Reign — Lynn Steigleder

In this, the third book in the Rising Tide Series, Ben, Eve and Pete continue to push through this new Earth as the world sinks deeper into corruption. They gain new allies, including an intellectual animal equipped with the gift of speech. They are forced to battle six aberrations (beasts and riders) deemed nearly indestructible. The environment has manifested into a frigid terrain with the sun lost in the ice filled cloud cover. Swords forged specially for the riders by the riders offer another layer of defense to an already superior force. The humans have deduced that water may possibly be a weapon, but a weapon that even now is freezing at an accelerated rate.