Okay, so I've been looking around online, and when I was reading the 39 Clues message boards, I learned some information about the Mission Hurricane book cover.
Apparently, if you pre-order the ebook, you can see the cover. I haven't been able to find an actual image, but it has been described as looking similar to the cover of Day of Doom, except it is green and looks darker/more sinister.
This doesn't sound good. -_- It also supposedly features a legitimate hurricane on the front. I'm just praying that they don't go down the whole weather-machine path again. IT DOESN'T GO WELL. JUST DON'T TRY. PLEASE.
There was, at one point, an Operation Hurricane, so I'm hoping that that's what the title refers to. I can't stand another remake of Day of Doom. Please, I'm begging you. No.
Has anyone been able to find an image of the cover? If you have, please leave the link in the comments below!