It's very good, but the voices are very strong too.
Have you seen the film version? Not perfect, I think, but some standout performances - Mia Farrow as the unicorn, Tammy Grimes as Molly Grue, Christopher Lee as King Haggard.
Beagle said Grimes was better than perfect for Molly, and that he could never hear her voice as anyone else again.
"It would be. It would be the last unicorn in the world who came for Molly Grue. But it's all right. I forgive you."
Lee came to audition and readings with an annotated dog-eared copy of the book (as he apparently often did) and insisted on the script staying as faithful as possible to the original.
"I like to watch them. They fill me with joy. The first I felt it I thought I was going to die. I said to the Red Bull I must have them, all of them, all there are. For nothing makes me happy but their shining and their grace. So the Red Bull caught them. Each time I see the unicorns, MY unicorns, it is like that morning in the woods and I am truly young, in spite of myself."