The Diamond Bearer's Ring

Book seven of The Unaltered series. Calli’s impulsive decision to break communications with the Diamond Bearers leaves her unable to call for help when captured by the mysterious Spellcaster, Vita. She must find a way to escape and help Chris, who's heart won't last much longer under the stress of the new diamond. The ring Chris gave Calli holds a possible solution if she can only figure out how to wield its power in time—a power seen through her previous visions of the impending cosmic blast about to hit Portland, Oregon.