Spinal Crack is a long enticing finger-fracture on the buttress a few hundred metres to the right of Sub-Cneifion Rib. It remembers a few attempts. Everything originated in the eighties by Johnny Dawes. Then Mark Katz climbed the lower section before but moved out towards the right arete to give Hamartia E8 6c. Neil Dyer, a strong local climber, attempted the line but fell off reaching the crack and snapped the sling on the spike, breaking his back in the process - in remembrance of that Jack named the route.