Five years after the convergence, the world has been rebuilt.
The silver Rose blooms annually. The doors between realms are open. The twelve original couples have built something that was never supposed to exist: a world where angels and vampires and demons and fairies and werewolves and humans live in the same space.
But the children are arriving.
Lyra, who speaks in rainbows. Storm, whose lightning protects the sanctuary. Terra, who grows forests overnight. Ember, who transforms grief into art. Hope, whose protection field covers the entire converged world. And Bridge - the void that was hungry and lonely and has been learning, from twelve small teachers, what colour tastes like.
A new threat is approaching. Not an enemy - something older, hungrier, lonelier than anything the Covenant has faced. And the children are the only ones who can reach it.
The Covenant was the beginning. The children are the continuation.
The Butterfly Covenant is the fourth book in the Twelve Butterflies series, following Butterfly in a Vampire's Cage, Wings of Forgotten Memories, and The Black Rose Blooms.