When I was in my teens, a number of decades ago, Madeleine L'Engle was my favorite author. I re-read several of her books a few weeks ago. I don't really like her any more. She struggles to expand her mind to embrace diversity of race, class, and sexual orientation, but it feels like it's a struggle for her. Her mind is still fenced in by a life of privilege. Mercedes Lackey and Tamora Pierce present diversity with more ease.