All three of them felt the pressure of the water increasing. The steepness of the cave they had come from seemed to be much worse now. It wasn't just the fact that the cavern floor was slightly slipper, it was the water growing worse as well.
Each step that Clark pushed forward was braced by the stab of his spear in to the ground. If he didn't then they would start to slip backwards. The combined weight of Maria and Purple with him was all that kept Clark from sliding as well.
"We need to make a bog push and get to the next level. Then we can focus on the ropes and climb up." Clark calmly spoke through his gritted teeth. He wished that they weren't facing a trial of nature like this. If he had been fighting a beast or something he would have the upper hand. But against water flowing through an underground cave? He had to face it and hope that he was enough.