I can't remember where I read this but, I read a theory somewhere that the Morgan you get is the one from Future Past. That is how they have two copies of the strategy book, one from Master Grima and the second is the one you gave them in Future Past. Some how the Morgan from Future Past end up traveling back in time and losing there memory, which is a blessing because they can create new wonderful memories and not remember about all those things that happened in Future Past.