I don't often comment on stories unless one really gets my attention.
Timothy's do.
In answer to an email I received, a suggestion:
>This is a great read, even if you're not into the "minor" theme - because you can always change the numbers on your own copy at home from 12 to 18 or XX if that's what you like.<
The style and plot actually DO work for any age bracket, so even if you don't like the "minor" theme, read this series and try that.
I think you'll be glad you did.