best alien novel

Eden Mills, detective from Titan, arrives to Europa and meet Roxy Nelson. Here, in front of alive nature, he has a strange visions. It seems he was there in the past...

The Void, the nameless world, has nothing clear, every single thing carries its own secret. Sebastian Robbins, an ordinary Earthling, accidentally arrives in the Void world after dying, becoming a Void Keeper without much talent. From being untalented, he rises, this Void world is still waiting for him to explore!