OOC: Ok, here's the pivotal moment.
Simba finally got to Scar. From the red-maned lion's words, Scar figured out that he was dealing with the now-grown Simba, he revealed the truth of Mufasa's death. This caused Simba to fight even more ferociously. When Simba finally cornered him, Scar did the first thing he could think of: try to save his own skin. "It's Zira and the hyenas who are the real enemy. It was their fault-it was their idea!" Scar stated, unaware that Zira, Shenzi, Banzai and Ed were on the ledge directly above him and could hear every word he said.