What's the Name of That Book??? discussion

I’m trying to remember the title of a book I read (around 2007-2009, but it could be older). It was a fantasy/adventure novel and here’s what I remember:

Plot: A boy visits a carnival and ends up in a mirror maze. Somehow, he ends up in a strange, grey world after walking through a mirror in the maze. In this world, he meets a mysterious, unnamed girl which he later names Alice. I remember that once he calls her Alice, she says that she likes it because its icey.

Format/Medium: I read this as a physical (paper) book in high school for my English class (years 7-9 in NSW).

I know this isn't a lot but I'm hoping someone else read this book for school and could point me in the right direction.

Greylands by Isobelle Carmody.

bookel wrote: "Greylands by Isobelle Carmody."

Thank you! You are the best!