Argai the Prophecy/Headscratchers


 * For some reason, the characters avert the trope Narnia Time as they travel between 1250 and 2075.
 * We can only assume the time machine and Queen Orial's time travelling only works by years and not months, weeks, days, hours, minutes or seconds.
 * Since Moony decided to stay with Jason in The Middle Ages, does that make her her own ancestor?
 * And what would happen if she dies of old age in The Middle Ages? Does she appear again in 2075 and promptly die there as well? Or will she revert to the age she had when she left her own timeframe?