The second volume. Still weird, still not complete -- spoilers ahead
Taking off where the first one end, with Hero having dragged RGB to the roots of the very strange tree. There she meets an animated sock -- Assok -- that can only repeat words that it's heard. She climbs the tree and quarrels with RGB on discovering she can't go home. Sleeping produces interesting results --
Including meeting someone who knew RGB, more revelations about Dial, a confession for RGB, a market where Hero's hopes are dashed, an owl, explanations from RGB about the world, and more.