Also, it's been a while, so I should also remind you that what Alex saw indicated that the watch at the main gate was extremely lax. He noticed that no one was actually watching out of the arrow slits - at least not while he was there.
Oh, and I've allowed a generous amount of time for getting back up the mountain. I've set it so you have a half-hour of full daylight left. Lot's of wiggle room if you want to adjust this so you're attacking during full daylight.



