"Hm. I don't suppose..... Well, let's see if this'll do." Irathias mutters, looking across the ravine and judging the distance. He crouches down and removes his backpack, rifling through it for a moment before digging out the biggest thing he carries - a 50 foot length of silken rope, attached to a grappling hook. With the rope out, his backpack looks practically empty.
He makes sure the hook is secured at the end of the line, and spends a minute getting the rope laid out properly in a loop on the ground, so as not to tangle. Then Irathias secures part of the rope to a post on this side of the ravine, starts spinning the end with the grappling hook around, and hurls the hook towards a post on the other side. He leaves about 30 feet of rope between the hook and the post on this end, and if the grapple doesn't catch, he tugs it back to try again.