Superhero: I Seem to Want to Save the World

My name is Lin Xian, and I fell into a mysterious island because of a plane crash. Parallel universe? Distorting space? I got a golden stone tablet on an isolated island. Strength speed Master spatial abilities All aspects of physical fitness ... ... ... After getting a qualitative improvement, I returned to my original place. Five years have passed since the discovery In the five years since I disappeared, the world has undergone earth-shaking changes. The dead life actually came back to life My homeland was razed giant sandman High IQ alien The Mothman who brings doom ... ... ... The world seems to need me to save it. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.