Jenner continued his climb, his muscles burning with exertion. He had been climbing for what felt like days, and his body was starting to ache with exhaustion.
As he climbed higher, he noticed that the Tower's surface was starting to change again. This time, the stone was slick with moisture, and he had to be careful not to slip and fall.
He heard a sound ahead, a soft humming that grew louder with every passing moment. Jenner approached cautiously, and saw that the Tower's surface had given way to a massive waterfall, pouring out of a crack in the Tower's surface.
Jenner hesitated for a moment, wondering how he was going to get past the waterfall. Just then, he saw movement out of the corner of his eye. He turned, and saw a small creature standing on the edge of the waterfall, beckoning him forward.
Jenner approached cautiously, and the creature handed him a small flask. "Drink this," it said, "and you'll be able to breathe underwater."
Jenner nodded, and drank from the flask. He felt a strange sensation in his chest, and then suddenly, he could breathe underwater. He stepped forward, and then plunged into the waterfall.
The water was icy cold, but Jenner pressed on, swimming through the torrent until he emerged on the other side. He took a deep breath, feeling the air rush into his lungs, and then continued his climb.