Tempest is a talented diver and with her older sister Elyssea, she has explored the ruins of many cities on the ocean floor, searching for anything of value to sell in the salt crusted markets on Zenith Reef. However, after Elyssea mysteriously drowns, Tempest is forced to dive and scavenge alone, barely scraping by. But when she finds a real living green plant at her dive site, an item so rare it is almost priceless, she finally has the money to have all her questions answered--by her dead sister.
For the price of 3,000 notes, the research facility on the island of Palindromena will revive the departed for 24 hours before returning them to death. It is a time for the dead to make peace with the past and let the living move forward. Strong-willed Elyssea has other plans. Convincing Tempest to break her out of the facility, they embark on a dangerous adventure to find out the truth about their supposedly deceased parents, the secret behind the revival process, and the true price for restored Life.