She'd known Mrs Prendergast for oh, so many years. So perhaps a few kind words and an offer to help the old lady move her belongings to a new home would persuade her to sell to Joshua.
After all, the offer is very good...
"Yes, it is a generous offer," said Mrs Prendergast, "but this is my home, I don't want to move."
All the persuasion in the world wouldn't make Mrs Prendergast change her mind. Even Zeke tried:
"I'll come and do your garden every day, Mrs P," he'd said.
The old woman wouldn't even think about his offer.