Yeah, it wasn't in the book. IIRC, a bunch were chosen each year and were taken to the Elcrys, if the tree wanted them to be chosen, it would have a branch droop down on them to signify that she would accept that person as her attendant. In the book there was no question that the Elcrys was magical. It was when Amberlee was chosen that was a bit special because female chosen were only once every thousand years or so. Chosen were men mostly, so having Amberlee chosen was just a curiosity at that time.mr friendly guy wrote:I don't even remember the race in the books to be honest. I suspect this was something the television producers added to make the characters seem more round.
It turns out that that curiosity was very important but not going to spoil it.