The identity of a $55 million Powerball jackpot winner remains a mystery, but there are plenty of theories in the case of Australia's largest unclaimed prize.
It could be scrunched at the bottom of a handbag, under a couch or even on a Greek beach, but the winning ticket was purchased at Melbourne's Scole Lotto and News and has been unclaimed for a month.
The new multi-millionaire was not a registered Powerball player and with all leads gone cold, Tatts are appealing for the ticketholder to come forward.
"We've heard lots of theories, the latest one is that it could be a Greek man who has travelled to their homeland and is holidaying, oblivious to the fact they could own the island (they're on)," Tatts' Elissa Lewis told reporters on Thursday.
With the Australian Open on at the time of the January 11 draw, Ms Lewis says a tennis fan may have purchased the ticket, worth as much as the grand slam's total prize pool.
"It could be someone visiting for the tennis, they could be from anywhere around the country and they could've travelled home unknowingly having bought the winning ticket," she added.
"We are just hopeful we can prove one of those theories right sooner rather than later."
Others have tried their luck claiming the ticket.
"People say they've lost it, they washed it or they've moved house and it's in a box," newsagency worker Jimena Cardozo said.
"I would like to think the person is on holidays and when he comes back he's going to know he's a millionaire."
If the money isn't claimed after six months, it will go to Victoria's State Revenue Office, but the ticket owner can still come forward thereafter and take their winnings.
The winning numbers were 32, 7, 5, 34, 38 and 11, while the all-important Powerball number was 12.
