The Entire plot of the second game in Ubisoft Montreal's Prince of Persia trilogy. All of the cutscenes, boss fights and Dahaka chases with plenty more gameplay to fill in the edges.
0:50 That was a very short sea voyage
This chapter gives you a new perspective of the events in the game by recapping them as the Sand Wraith (it also shows a lot more detail in the library).
I was under the impression that the Prince could not speak as the Sand Wraith (until he said "Die you Bastard"), this would give one explanation as to why he does not simply tell his past self what is going on. Another explanation would be that he already has a plan and does not want to jeopardise it by prematurely changing events.
I had a lot more sympathy for Kaileena before I researched all these notes and discovered how she experimented on the Islands inhabitants to create her subjects.
I found no reference to say how much time there is between Kaileenas time and the Princes but it does show that again it is her own attempts to forestall her death that hastens it. She knows when he is to kill her and when he comes from but does not put two and two together to realise that only she can connect the two times allowing it to happen, had she realised this beforehand then all the events leading to her death would have unravelled.
I wonder how long Kaileena has been alive for? She certainly reduces her lifespan greatly by connecting to the future.
You could ask why the Prince does not simply try to leave the Island once the Mask is off, this would surely prevent the creation of the Sands, why confront her now knowing the risk? The simple answer is that he is becoming genre savvy, chances are that the butterfly of doom will rear its head and she'll suddenly have a Final Destination moment as a statue falls on her. If he leaves there is always the risk that she may die another way and her remains will still be there for the Maharaja to find when he arrives. The Prince sets up a situation where her death is irrelevant to his cause and relies on his own skills to pull it off rather than the vagaries of time and destiny.
Time clone -
One of the questions of time travel is what happens if you travel back in time and prevent the circumstances which caused you to travel back through time in the first place?
There are many different ways of looking at this question (though I'll be ignoring any that claim you are simply jumping into a parallel universe) The easiest way of looking at it is with the well known Grandfather paradox (travelling back to remove yourself entirely from existence by killing your grandfather)
1) If you are working with a stable time loop then you either a) fail or b)destroy the whole of creation by breaking its rules. If your grandfather is killed, you dont exist but if you dont exist then you cant kill your grandfather so you do exist but then you can kill your grandfather... BANG, there goes creation.
2) With a more flexible universe changing the timeline is simple, either you a) still fail or b)you shimmer out of existence after doing the deed or c) there are now two of you but one of those two doesnt exist.
To clarify: point c and a are not mutually exclusive and point b is a cheap way of rationalising the paradox in a poor story. If you fail then you have simply created a time clone of yourself which in a stable timeloop is able to return to its own time and occupy the place it just left. If you succeed in preventing your own existence then you have changed the future which luckily you are no longer occupying, Your former past is the equivalent of your mother but the act of time travel is equivalent to being born: once you have left, then destroying your origin can't affect you (except psychologically, good analogy eh) Confused yet?
To sum up travelling back through time creates a clone of yourself but you can only return if you don't significantly alter the past.
Now The Mask of the Wraith is interesting because it creates a clone of yourself but as a Wraith, one of yourselves must be killed for the other to continue. If the Wraith dies then everything continues as before but if the original dies then the Wraith Mask falls away and future you fully replaces past you in the timeline. This creates a stable timeline up to this point but a paradox from this point onwards.
You could say that there are three levels of time travel invoked by the Sands and Artefacts
1) The portals on the Island are completely stable, They give you physical access to the past or future but anything you do there you have always done and will always do.
2) The Dagger and Medallion grant you mental time travel allowing you to alter the past/future but these alterations are still a part of the overall timeline.
3) The Mask is a paradox generator which starts stable but can re-write time completely giving you a new timeline.