Six shall hold it back...

Huh. I just saw an ad for The Seeker and am in the middle of re-reading the The Dark Is Rising series. What with the Harry Potter flicks, the Chronicles of Narnia movies (Prince Caspian is currently filming, I understand) and now this, it looks like epic magical preteen movies are big money. Any suggestions on which series will be next?

I'd say the Wrinkle in Time series, but frankly, it's too cerebral to make it through the Hollywood grist mill unscathed. Your suggestions?