Not as good as the first one; has lost some originality, as an adventure story, and didn't pick up character depth to make up for it.
I didn't think the two characters who are Exactly The Same But Different made sense, really, not even the poetic sense of All Shall Be Revealed Later. Which is a pity, I had hoped that the silver purity of one of them would make a good foil.
Find in a Library from Worldcat
So wrote clew in SF&F.