Jacob found himself in the same black passage as he moved forward, and there was nothing around.
But he didn't have time to mull over anything because his heart rate was about to break the 10X limit, and he knew his body wouldn't be able to take it.
Just with the 10X acceleration, he was beet red, and he could feel his veins would explode if the blood circulation increased any future, and he will die.
If not for the five pounds of meat he consumed, he would've been long dead, and his injuries were almost mended because of it.
But he knew he wasn't out of the woods yet. So, he quickly sat down and at a pound more before he started to completely focus on calming his heart down.
But it was far easier said than done since 10X acceleration was his current body limit, and he had yet to master even 7X acceleration fully, so it was too hard.