Kat reduced the amount of energy she was feeding to her mind to keep time slowed as she clambered up the rock wall. There was no reason to keep everything so slowed when there was nothing to react to. With Lily still sleeping in her left arm, she relied mostly on her legs and tail to keep herself balanced with her right arm doing what it could, but really her tail was what stopped her falling several times during the climb up. Once at the top of the pile, Kat could see that what she thought was a small gap was actually two small gaps on either side. The extra height from the frozen millipede corpse had made the pile of rocks much taller but only in the centre.