SOLVED. YA Fantasy book about girl who falls into coma and is trapped in another dimension by an evil entity/ king. Brother must save her. [s]

[Katy]

I’m losing my mind. I think the girl’s name was Kate or Katherine, and she falls into a coma and gets trapped in some magic/ faerie dimension by some magic dude or king, and her brother has to wake her up before it’s too late. I read this probably around 2009 or 2010. I very strongly feel like she had silver blonde hair.

[Juels]

Maybe Darkhenge by Catherine Fisher?

[Katy]

I think that’s it!! Thank you!

[Juels]

You're welcome.