I have just finished playing Assassins Creed (1) and before deciding whether I wish to play all titles in the serie I would like to know whether the series only asks more and more questions, without answering them adequately or whether it solves as much mysteries as it introduces. I have a vague recollection that a friend once said that the former was the case, however since then it has been a couple of years, so I am harbouring some hope that this has changed.

For those who require specific definitions in the context of this question I will define adequately if at least 2/3 of the major questions from the previous games are answered. Major questions would for example things like (though those are just the ones I am most curious about right now):

* Who made the signs at the end of AC (1) and what do they mean?
* What are the Pieces of Eden and who made them and why do they show a map of each other?