In physics, escape velocity is the minimum speed an object needs to break free of a planet's gravitational pull. Below that speed, all you can do is circle the planet again and again until your fuel runs out and you fall back down.
Only when you exceed it have you truly escaped.
Dawnstar, the planet where Lin Che lives.
One day, an official announcement declares that an unexpected visitor has arrived in the star system containing Dawnstar. A black hole of unknown origin, code-named "Dark Tide," has quietly captured our planet within its gravitational boundary. In ten years, Dawnstar will cross Dark Tide's Roche limit. At that moment, our world... will be torn apart completely.
