The obvious direct finish to Siege Engine, taking the large roof and headwall
above its traverse. Follow Siege Engine to the thread. Arrange good Cams in the
roof. Make a very powerful stretch across the roof to gain the short flake-crack
on the lip (protection). From the top of the crack, make a hard lunge (crux) to
reach the slabs. Climb easily up the slabs above to finish. Well protected and
excellent 8a+ climbing.