Peter—who becomes a High King of Narnia in the earlier novels—is the eldest of the Pevensie children and acts as their leader throughout the novels. For now, the identities of the other figures in Tirian’s dream remain mysterious, though there is an implication that they are characters from past books. Additionally, the nature of Tirian’s “dream” suggests that it is not a dream at all, but rather a vision of some sort. Somehow, Aslan is connecting Tirian to Peter’s world as a way of sending help. Notably, Aslan only sends help after Tirian decides once and for all that Shift does not speak for the true Aslan.