The barrier at Platform 9 and 3/4ths is solid.  

“We can’t get through,” He says, his already white face paling further.

He wishes desperately for someone to hold him, someone to tell him that all will be well, for someone to take control.

Unfortunately, they don’t have anyone, and all that’s left is the stares they’re getting and the rising sense of hopelessness.

And a car.  A flying, invisible car.

There isn’t a choice.  He doesn’t have any options.  He has to get to Hogwarts.  He cannot stay here any longer, in this place of not belonging, in this place of not home.

I don’t have a home, is his despondent thought.

. . .

“You were seen!”  

Snape slams the muggle paper down on the desk in-between them with such violence that he nearly bursts into tears from the fright.

He’s hungry.  He’s tired. He’s home.

But I don’t have a home.  Not even here.

“If it were up to me, you’d be expelled.”

Where would I go?  What would happen to me?

Harry pulls his knees up to his chest in an effort to calm his racing heart.  He’s trembling badly.

“Stop it!  You’re scaring Harry!” Ron shouts.