‘The Witcher’: Why Do Elves (& Everyone Else) Desperately Need Ciri?

The story of The Witcher, naturally, revolves around Geralt of Rivia and his quests as a monster hunter. However, perhaps more importantly, Geralt is the protector of Ciri of Cintra, a child of immense power that is hunted down for that power, not just by Elves but essentially every creature known to exist. The question...