The role is silk, spider silk at that, made by a drider the rope is good. Mirran has no other climbing spikes, but even better there is already one anchored to the other end. it was used to make the bridge... Mirrans prepares to jump... but she perceives movement from down below... It is a Darkmantle, possibly the same one as before... Peeved, she drives it off quickly with a barrage of rubble and it goes back into hiding. She Jumps...gracefully! and fixes the rope on the other side. The rope is untied and secured at the far end. Then thrown back across with great difficulty, where the next person jumps. Bernard jumps sucessfully, the process is repeated with Ragnar who is terribly sober, and he hurls himself with stubby legs and smashes straight into the overhanging stairs. His foot lands s straight on the end stair and finds no traction, his momentum brings him downward smashing his pelvis on the edge stair... he makes a face and his hands find grasp desperately for a handhold as his balance sends him careening backwards... twisting through the air as he falls, the fall is broken by the safety ropetied around his chest. The shock of a 6 yard fall, due to the requisite running start to attempt the jump, damages his ribs and his entire wheight is directed at his spine.Hurt, Ragnars feels shooting bolts of diffuse pain shot through him and spasm his body, but his enchanted shield masks the pain as only only distant echo. He is hauled up by his comrades and although Ragnar can stand, his body is not responsive and he has difficulty walking, a dull throbbing encompases his being. It is a strange sensation, confusing even. Whether further action will further wear on him is beyond the medical or diagnostic skills of those present. There are still 2 more jumps for the group to make now.*
*(quickly retconned to save the rope supply and presumably not leave a path for others to follow but now needs 3 jumps from each person instead of 3 total jumps)
(Edited for to use a different crossing teqnique.)