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OftenPartisan
Since: Jul, 2011

I'm trying to remember a book that I read when I was about 10/11-ish, so circa 2005/2006, although the book may not have been released in that time. From what I remember, it was set in modern day. I'm not sure if it was a series or a standalone book, but one plot point (not, I believe, the entire plot) I remember is this:
A girl has never known anything about her father. She does some research and believes she may have found him, so gets the bus to see him. She finds out there is a man in hospital in a coma with his face bandaged who she believes is him. She frequents his bedside, developing a slight bond and eventually helping him awake.
If I remember correctly, the man is revealed and it his her dad, but for some reason this is a trick and it was the wrong man-in-coma. The real man-in-coma is then revealed and it isn't her dad.
As a series, I believe it may have some kind of kid/teenage spy thing, but more a la "Famous Five", not quite "Cherub"-style, but don't quote me on that. There also may be a science institute involved at one point, but again, I'm not certain. Also, there may-or-May not be some kind of gameshow involved, which may or may not be hosted in a school hall, and it may or may not be a distraction to some higher plan.
It's been bugging me for a while, now. Sorry my recollection is quite vague, but hopefully it's enough.