1992 - I really liked it.
2003 - I remember reading this when I was a kid and knowing it was something about an acrobat girl and enjoying it. On this reread, I found it to be quite a complicated story, and I wasn't sure whether I liked it or not.
Basically, there is this figure called the Red King, who dwells inside the mountain, and demands the rest of the world pay him tax, and if they don't he poisons them with red air which makes them catch a horrible disease and usually die or else be disfigured. There is also slavery.
Timkin is an acrobat who was bought by Master, who is now an old man, when she was a little girl. She was one of the children who are removed from a village and sold into slavery before the Red King's henchmen kill all the adults. She is Master's favourite and he loves her and he promises to free them all when he dies; one night he loses the strength in his arms when flinging her from the trapeze and she almost falls, and he promises to free her then, but then they get stuck in a village which is given the Red King's retribution and they get sick. Master dies but Timkin is nursed back to health by a mysterious man called Petie, who travels with a bear, Bruno, and a monkey, Crystal. The monkey had stolen a ripe pod from a special tree, which healed her, and once recovered she can't catch it again. When Petie saw Timkin he decided she was perfect for his plan to steal the Red King's gold and kill the Red King, ridding the world of him. He knows all about the Red King's history (though whether everyone knew this but Timkin because she is an ignorant child I'm not sure; we get the impression it is something Petie found out for his purpose).
Once the Red King was a wise hermit who lived by a healing spring he shared with people who came but when he started aging he was afraid of dying so he left the spring and went to the mountain where he stepped inside a white flame that burned away aging, but also all his higher emotions. He considered himself king and wore a gold mask and red robes and took over the world. Where before he healed, now he spread disease. He blocked off the spring and a tree grew over it whose pods can heal the plague he spreads, but it is guarded by a creature who was either once man or bear and healed badly from the disease, and eating only the pods has become mostly tree in grotesque appearance (47-8, 56).
They get in by performing for the king, fight one monster that lives in the water and eats people, then get captured by a naked old witch who poisons people, transforming them, then eats them when they die, even though poisoned flesh. They escape from there and find the Red King, push him into the flame - he had been in there so many times that there was little flesh left on him and this final time kills him. Petie got poisoned so is dying but Timkin carries him outside, and the two unripe pods she stole with Bruno's help have ripened by the white flame and save Petie; she carries him back to the wagon and nurses him to health, only to discover his pockets were full of gold, weighing him down.
She won't forgive him for nearly killing them with this extra weight, but life without him is boring so forgives him in the end. I think the moral is we have to not idealise people (as she did her first Master too who could after all have freed them any time) and must love them good and bad. Petie is a funny character, described as neither young nor old, and with lightning mood changes, from kind to cruel and all the rest.
Some of the creatures lost their humanity and attack them after freed (p.120 lion-headed, "snake-like, bear-like, barely human forms") but one man that is shrivelled, kind of monkey-like, helps them. Timkin has a very kind heart and even sees the old woman as transformed from someone who was once human and kind. How are we to understand Petie's pleas with the woman and with the red king for mercy and healing, just part of his plan or really how he felt at that time? He is a difficult character to comprehend. Timkin, with her kindness, is much easier to like and to understand. I was left to wonder why everyone else who survived had face scars (even Petie, healed the same way), compared with Timkin.