Unfilled contract, betrayed drive.

Absolutely everything has to be a teen novel of initiation is there, since the role of parents (absent, abusive, models) to the presence of siblings, through initiation rites, friendship, the question of choice (life, friend ...), the weight of education ... etc.
The style is very nice, light, easy to read but still rich enough.
The story is about a teenager and his entourage in a world where there is a framed set order, where one has to choose to belong to a "faction" chosen according to personal taste (bold, scholarly , altruistic ...).
There will be revolts, twists and a transition between the 2nd and the 3rd tome that is particularly well done.
A beautiful imagination in this author.
Why only one star (you ask yourself perhaps)?
I do not want spoilers, so I will not say here how, but the author literally and definitively betrayed the player as I have rarely seen.
I wish to be told before "attention to this trilogy, it is very successful, but leaves a lasting impression of sadness, misfires" which is not what we're looking for this kind of reading novel.
One author I do not redeem anything, whatever she writes!