Welcome to Litsy!

A slightly darker sequel to "Weirdstone", focusing on a different aspect of British folklore: The Wild Hunt. Susan dominates much of the action, as her brother, Colin, is captured & held hostage by evil forces, Susan's increasingly desperate attempts to rescue him being a clearer inversion of traditional roles than in the previous book.
I also like how Garner adds details, such as making Susan the young aspect of the Celtic triple moon goddess.

The second in Alan Garner‘s trilogy. Susan and Colin are faced with hard choices as they are caught up on the side of the light against the dark in the Welsh countryside. No sugarcoating. The kids are treated as adults and they rise to that. Susan Cooper‘s excellent The Dark is Rising series is similar, though Alan Garner is not so romantic. The Wild Hunt is Old Magic, and frightening as it should be. As are the elves.