This Mortal Coil

You can claw and scrape at the fabric of spacetime all you want, but the Maw is inescapable — its hunger insatiable. Eventually you'll be compressed and consumed as it extracts every last bit of information from your withering spirit, until all that’s left is nothingness.

Sounds terrible, if you ask me.

About the book: 

In This Mortal Coil, players take the role of space travelers-turned-necromancers on a quest to achieve eternal life by constructing a magical device known as an anchor. They'll create undead thralls to do their bidding, gather energy to power their quests by harvesting living creatures, and master the forces of the Negaverse. Along the way, they’ll explore fantastic worlds, battle terrifying creatures, and negotiate with cosmic horrors to unlock the secrets of immortality.