It remains an unsolved mystery, a baffling case that will leave you wondering what really happened to this young girl.
On Sunday 19 August 2012, Leisl Smith left her Wallarah home in NSW at around lunchtime.
She didn’t say where she was going, only that she loves her dad and would be back at 5pm to feed her animals.
CCTV vision then places her at the train station at Tuggerah where she's seen leaving her parked Honda Accord.
She walks away from the car, doesn't board a train and isn't seen again.
‘It just rips you apart because on one hand, you're praying that they find nothing,’ Leisl’s mum Sandi tells a new podcast What have you done with her.
‘On the other hand, you want them to find something 'cause then at least you know.’
Reports over the years suggested Leisl was seen getting into a white Ute at the station but where she was headed, who she was headed with, nobody knows.
‘They see her getting into the car and the car driving off,’ Sandi explains.
‘They have since been in contact with the person who had that car and he claims to have dropped her off somewhere along Tuggerah Street which doesn't really make sense if she's parked the car at Tuggerah station and he dropped her off at Tuggerah Street, then wouldn't she just walk back to her car?’
Where is Leisl Smith? Listen to the new podcast What have you done with her to discover more about this heartbreaking case.
For more gripping true crime podcasts subscribe to New Idea Investigates – available on OMNY and iTunes.