She's a student.

Or rather a former tourist, judging by hazel's work. She was just a passerby, just another person walking by the house. 

But this house is so old. Why would anyone be walking by it? And why would they say anything about it?

I read their comment, and my mind was set ablaze with so many different wonders. 

Who is Hazel Grace?

How did she find my blog?

Why did she read it?

Why did she comment such a thing?

They most likely won't read this, cause they've kept walking down the road I assume, but if you do read this, hazel, I stalked your blog. 

And I'm so curious to know your identity.