La guerre de l'ombre (Shadow Wars)
Where we meet Mia and her telepathic lymbiote again.
Mia has become the Look-out of Doregon, the world that she has been painting ever since her childhood and where she has allowed entry to Josh, her friend the bookseller, and her brother Moone. But the discovery that Moone is not her real brother and the expression of his violence in trying to seduce her and take over power in Doregon forces her to defy a major rule: It is forbidden to fool around with time lines!
So Mia returns to the past; she breaks the temporal line of history and from then on events are rewritten ...
But Moone manages to steal the Secret and creates "his world" peopled with shadows that obey him - a world protected by the "chimeras" that close off dangerous worlds. Mia has no other choice but to go there herself...
During this time, Josh is organising resistance against the Shadow that is invading Doregon and threatening its worlds.