So named because the routes is protected by 12 (!) skyhooks.
1 recorded ascents.
[1] https://www.ukclimbing.com/news/2016/04/new_12-skyhook_e9_by_james_mchaffie_house_of_talons-70418
[2] https://www.instagram.com/p/Cn6aWHqNKqz/