The Green Book

Living in seclusion on the Yamato Mountain Range for many centuries, Sagamund Greenhorn is one of the last survivors of the Age of Heroes, making him one of the oldest men alive, though not by virtue of magic, or so he claims. Having been there since the early days, there is much he has to tell on the story of the Greenhorns and how the rift formed between the high technocrats of Borealis and Miyako Fluxum.