Start to the right of the classic E5, Necromancer, turn the roof on its right and traverse the lip leftwards to the belay of Necromancer and follow it over the next roof. Traverse right towards Pterodactyl before clipping a good peg. Pull over onto the steep slab and follow the arete on its left side. Belay as for Pterodactyl. Follow the vague crack between Necromancer and Bat's Belfry to finish.