An outstanding and sustained outing, mostly on snowed-up rock, so a very good
plastering is required. The scene of several earlier attempts. Start up the Sleuth Start but
where this breaks out left keep going directly up the groove line to belay beneath a short
overhanging chimney slot (40m). Climb the slot, then move up then slightly right past a
pile a stack of flakes to belay by the gigantic block of Sherlock. Follow the summer line
of Sherlock to the top.