Unexpected Help 

"The Undead are truly fascinating," James commented as he held Sleipnir's reins in his hands. "They never get tired, so they are perfect for long battles."

They had just passed the 50th Floor and were now on their way to the 49th Floor.

Although the Undead didn't feel any exhaustion, the same couldn't be said for Lux, James, and Sleipnir.

It had been a few days since their escape from the 111th Floor, and they hadn't rested since then. It was a non-stop cycle of fighting, and running for their lives.

As James had kindly put it, there was no rest for the wicked. Lux could only smile bitterly at the old man's attempt to liven up the atmosphere. But, he couldn't really enjoy it as they were facing hordes of Abyssal Monsters attacking them from all directions. 

Tension was at an all-time high because they were doing their best to reach the 13th Layer of the Abyss before Daniel could catch up to them.