'this web of time -

the strands of which approach one another, bifurcate, intersect, or ignore each other through the centuries - embraces every possibility. We do not exist in most of them. In some you exist, and not I, while in others I do, and you do not, and yet in others both of us exist, in this one in which chance you favoured me, you have come to my gate. In another, you, crossing the garden have found me dead.'