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Her mother, meanwhile, is desperate to warn other parents who falsely believe their children are safe.
They are telling their story a week after the news that the Child Exploitation & Online Protection Centre (CEOP) receives 500 reports of potential abuse each month.
It's not just that she's terrified he will find her and seek revenge because of her part in sending him to jail, but also because it is only as she grows older (she is now 17) that she appreciates just how sexually depraved his behaviour was.
She won't say hello when she meets you, doesn't make eye contact and just scribbles ferociously on a piece of paper in front of her.
'At the time it all came out, I felt all right - I knew it wasn't right, but I couldn't comprehend how bad it was. 'The upset gets worse as you get older and understand more.