I think it's highly likely that once Jeremy was free of all restraints, the farm and all those connected to it ceased to exist.He was young, carefree, and RICH. Nowhere he couldn't go. Nothing he couldn't do. Nothing he couldn't have. Heady thought, eh?
But still haunted deep down by the memories of those blissful early years, gone forever and now impossible to re-enact, before the banishment to Gresham's and the onset of mother's illness, dad's moroseness engendered by Diana's death and Sheila possessed by the Devil, from which Jeremy first shrank.
If only he could go back, return to those simpler times and pleasures, when he was not labelled a failure at school, was not pushed to produce more on the Farm, impress Nevill's cronies or understand the nature of mental illness. Restore the Farm as it was, with mum, dad and two burgeoning children, their milk teeth placed under the pillow replaced with a sixpence in the morning, a morning he now urged would repeat as he asked Pamela for those mementoes, averting his eyes as he stared simultaneously into the abyss of his own diablerie.