Slipspace

Slipspace is a 7th dimension parallel to ours. It is not a universe, rather, it spams the entire Trolliverse and beyond. It can only be accessed by rupturing space and time, a technique that the huemens, the Cuveenent, and a few other people have accomplished. It was mostly used by the Huemens and the Cuveenent during their war to go from one area to another, though slipspace drives were used to rupture space and time, and they were basically ticking time bombs.

Properties
Slipspace has a lot of weird properties in it that make it useful to travel through, such examples are:
 * Easily reaching post-light speeds
 * Little to no effect when going post-light speeds
 * Parallel to ours, so if you know where you're going you can navigate through it fine
 * Has been utilized by a few to make huge teleporters (army sized).