Boldly, Lily pressed forwards. "We can handle this, okay, Sparks? I've got enough power in my horn to light these tunnels up so bright that they'll be able to see them from Cloudsdale. If you want to stay here or head back, I won't blame you. This is more about me than it is about you, after all. But if the Royal Engineer and the Corporal can fearlessly walk right into the 'Lunar Sanctuary,' I think we can both follow a blind batpony who doesn't need light -- which, duh, is why they didn't bother installing any in here -- into his home."