Colleen McCullough's widower and an American university have been "nudged" again to try to settle their bitter dispute over the author's estate, as the court battle comes to an end.
"It is an all or nothing case," said Justice Nigel Rein on Wednesday, stressing that both sides should realise that one party is going to lose the NSW Supreme Court battle over the multi-million-dollar estate.
But the hearing continued late in the day, when the author's carer Helen Jackson was re-called about her evidence of not now remembering dates, times or days when she signed and initialled various will-related documents.
Justice Rein also was told the final witness in the case, Dr McCullough's GP, who declared she was sane and rational, is now due to give evidence on Thursday.
The author's executor and friend, Selwa Anthony, claims the University of Oklahoma Foundation is the sole beneficiary of Dr MCullough's estate as per a 2014 wil.
But the author's widower Ric Robinson says his wife left everything to him in a later will.
Ms Anthony claims Mr Robinson took advantage of his wife's ill health to change her will in the fortnight before her death on Norfolk Island on January 29, 2015.
The author's solicitor Piria Coleman testified that she fabricated a document and gave it to Mr Robinson, deceiving him into thinking it was a new will in his favour.
Mr Robinson has told the judge his wife had never feared him, denying claims he unduly influenced her to leave him everything.
On Wednesday, as the lawyers discussed whether the author's GP would be called, Justice Rein said he was aware of attempts to resolve the case.
He referred to the legal costs involved and the fact that evidence, which could be described as "surprising", had come out during the hearing.
He said he wanted to give the parties "a nudge" or encouragement to make one last effort to resolve the case.
The executor's barrister later said he was seeking a response from the US in relation to something put to him by Mr Robinson's lawyer.