How hard would it be for humans to reach another unniverse? It's a more common occurence than you'd think

Now imagine making that journey without any kind of special suit or magic wormhole or divine being protecting you. The chances of survival are slim and those unlucky few that do reach their destination, well let's just say they're not quite the same people who began their journey.

Liam dies during a colision with a truck; to be precise he was the one who drove said truck into a lamppost. The manner of his death aside he is reborn after having his brain squeezed through the proverbial ringer of interdimensional transference, and to add insult to injury is forced into the body of a dungeon core (one of those things responsible for building fantasy type dungeons, labyrinths, mazes .etc).

What follows are the adventures of a mentally unstable dungeon core - you have been warned.