Mund has his own idea
Subject The climb
OK, here's what Mund's gonna do:
He'll explore other options that he has, and in the end he'll realize that going up with Harp just makes the most sense. He won't say anything, but when it's time to start magicking up people, he'll join the rest. If anybody says anything, he'll be silent and just stare them down. If they still insist on talking about the situation, his response will be "Do you want us to get to the top, or do you want us to fight? 'Cuz truth to tell, I could go either way."