The Salvatore Saga, How to heal a world? (Book 2 of The New world.)

It has been 800 years since my mind exploded. As I get myself back together, I and Wulfe need to help the world to heal. My firstborn son, Derek, the World healer will accompany us in our endeavor to heal the world, to make the earth livable for humans, and to help them come back from underground. But then it is time for Wulfe to go the heaven, his time has come. The world is healed, humans are above ground and I have lost everything. I let my feline nature take over and become feral, mere jaguar with no feelings.