Juniper

Love the overall theme of spiritual training in a vaguely Celtic setting. The ending was a bit rushed, as with Wise Child. From former readings, I remembered most vividly the fact that Juniper's leaving a flaw in her Doran cloak that she thought no one would notice, resulted in her being injured by her enemy - a powerful image that stuck with me.

I've somehow never heard about this small series
by Monica Furlong; it deserves more readers. Juniper is the only
child of the king. She begins to train with Euny, her godmother, a
rigid and unfeeling woman, and slowly, with Euny's help, learns about
the true nature of power and about the truly important things in the
world.