The mother of an autistic teen believes someone could have helped him run away from home.
Samuel Hitch, 16, went missing from his Gold Coast home on Saturday morning with some clothing, his wallet, electric shaver and a handheld PlayStation console.
His mother Megan is making an emotional plea for his return and is at a loss as to why and where he went.
"He'd never leave, it's very out of character for him," she said.
"I think someone else is involved, I think someone would have to prompt him and help him to leave, because he would never leave, he'd never do this."
Police believe Samuel, a student at the local special school, could be trying to make his way to Sydney.
"He's autistic, so will talk about places. I would never think he'd go there, but he had mentioned Kings Cross," Ms Hitch said.
"He wouldn't know how to, he wouldn't have enough courage to do something that."
Ms Hitch discovered Samuel was missing about 7.30am Saturday after he didn't wake at his usual 7am.
She tried to open his door, but it was locked, and then ran to the back door, which had been left open.
"If anyone's got Sam, let him come home," she said.
"If anyone's seen him, approach him and ask his name, he won't hurt anyone, he's very kind."