The Castle of Llyr is book 3 in Lloyd Alexander’s fantasy series for kids, The Chronicles of Prydain. I must say, this is my least favourite so far.
The first 2 books were rather disjointed in that they very well could have been stand-alones. Book 3 actually continues a story line with Archen, the enchantress believed to have died with the destruction of Spiral Castle in The Book of Three. We get to see more of the nature between Archen and Eilowny. Eilowny is the last remaining daughter of Llyr so naturally a book titled The Castle of Llyr would be about her. Although she doesn’t actually appear too much in the book which very well may be why I didn’t like it quite as much.
Eilowny is to go to the Kingdom of Mona where she is to be betrothed to Prince Rhun, referred several times as a Feckless Fool by Taran. Taran and Gurgi are to ensure Eilowny’s safety and then return immediately to Caer Dallben. Taran is in a grumpy mood almost the entire book after learning about Eilowny’s betrothal to Prince Rhun because even without knowing it himself, he has fallen for Eilowny but surely an Assistant Pig-Keeper cannot compete with a prince, right?
In Mona, Taran discovers a plot involving Archen and Eilowny. Without giving away too much of the story, Eilowny is kidnapped and Taran and The Companions must try and rescue her which is why Eilowny herself isn’t in the book too much even though the whole book is about her. This point clearly shows the difference between a children’s fantasy and an adult fantasy – the number of viewpoints. Since the whole series only uses Taran’s point of view, we don’t know what happens with Eilowny when she is not around Taran. This also makes for the shorter books you would expect for children.
Not my favourite in the series but a necessary stepping stone to get to the end.