Immortal (The Sundering Series)

By some twist of fate thirteen people a year find themselves gifted with limited immortality, but when they start disappearing a four thousand year old woman named Dervy is tasked with finding out why.

After receiving an anonymous tip, Dervy flies across the United States to gather a new immortal with a death wish, but can she find out what is happening to these newly "Taken" while still protecting one who doesn't want to live for a day, let alone forever?