In reply to Owen W-G:
Directly up from heart of darkness belay
Taken from the Mowing Word section of the 1996 guide: -
"A pitch has been climbed on the smooth wall right of the upper cracks of 'New Morning' using a bolt runner, it was graded E5 6B and called 'If I ruled the World' (22.2.86). It began from the belay at the end of the traverse of 'Heart of Darkness' and moved up to the right side of the pinnacle...
I'm guessing that this could be the route. Doesn't explain why a hanger has re-appeared (I assume the original was removed?). Maybe a bit of a Bank Holiday wind up?