Who has ever mentioned marigolds or wetsuits.
A balaclava, maybe. Farm gloves are probably quite strong and protective.
If Sheila slept through the massacre, which is quite possible, Jeremy had the option of leading or carrying Sheila.
So while Jeremy disposed of his wetsuit,balaclava,marigolds,flippers,etc etc,where there was enough smoke pouring out of the Aga to elect a Pope,,Jeremy rode home-----naked,,on his bicyle on that cold wet night,in the darkness,via the rickety coastline,to quickly answer the call that he'd put through to himself at Goldhanger------------------------sorry,,don't buy it.
Even Roger Banister couldn't have topped that for speed.