Predicting with "Fairy Tales"

It's a new book and Artemis has a new scheme.  Normal enough, but that's when the normality ends.  Has the young Fowl truly made an invention designed to save the polar icecaps?  Why is he counting everything?  And is Orion truly Artemis' mind?  Or maybe Artemis Fowl II has developed the Atlantis Complex. Now don't fret, I can practically guarantee that in the novel, Artemis Fowl and the Atlantis Complex, Artemis will regain control of his mind just in time to come up with an ingenious plan to save himself, the Butlers, and the People before it’s too late. 

How do I know this?  My first reason is that the book is most likely a comedy so in the end all will go back to normal, until the next adventure.  Second, well it wouldn't be an Artemis Fowl book if it didn't have a (slightly stupid, pretty dangerous, and probably deadly) plan to save the day.  And third, since when has a book about fairies had a sad ending?

For example in Artemis Fowl and the Time Paradox, Artemis saves the day, in his typical fashion, but the villain escapes to start anew.  Of course this is necessary, Eoin Colfer wouldn't be able to make the next book in the series if he didn't have a cliffhanger ending.  Though it still makes the books a little, predictable.

In The Fairy Path we have a similar situation.  The main character has to save the day, it appears that the bad guy will win, and in the end the bad guy is banished and everything is fine.  Because it is written for kids, it isn't going to have a sad ending.  Just like Artemis Fowl and the Atlantis Complex. 

The surprising thing about these books is that as soon as the adventure is over the characters can go back home and live their life as normal.  Yet even knowing the basics of the end I can't resist reading the whole book.  So happy ending with a cliffhanger then a return to normal, is there anything else left to say?