More than three years after Novy Chardon disappeared, police have charged her husband John with her murder.
Now they want help to find her body.
Indonesia-born Novy, 34, was last seen at her northern Gold Coast home on February 6, 2013 and her car was found at a Nerang train station a few days later.
On Friday, John Chardon, a 68-year-old Gold Coast businessman, faced Brisbane Magistrates Court and has been remanded in custody.
But extensive searches and a $250,000 reward have failed to locate her body.
Police say the lack of a body, reported sightings of Ms Chardon and the complex nature of the investigation led to the long wait for an arrest.
Detective Superintendent Dave Hutchinson said the charge was the result of thoroughness on the part of investigators, rather than any new evidence.
Det Supt Hutchinson said he was hopeful Ms Chardon's body would still be found.
"We're still of the view that people have information about what happened on, or around, February 6, 2013," he said.
"This is a good moment for police. It's been three years and four months ... a relentless task. We've had people attached to the investigation the whole time.
"It's good to get it to this stage but this is not the end."
Chardon has been interviewed several times by police over his wife's disappearance but has repeatedly denied any involvement in her alleged murder.
The two were married for 11 years but their relationship had broken down by the time of her disappearance and they were preparing to divorce.
Two days after Novy's disappearance, Chardon flew to Indonesia with their children, then aged nine and seven, on what he said was a pre-arranged business trip.
In media interviews days after she vanished, he claimed Novy had "done this sort of thing before" and appealed for her to "get your stupid bloody a*** home".
Outside court Chardon's lawyer Craig Newport said his client was holding up well.
Asked if Chardon was surprised by the accusations, Mr Newport said: "No, and he'll be defending those charges."
Det Supt Hutchinson said no further arrests were expected.
The matter was set to return to court for a committal mention on August 29.
