Dominion of the fallen, tome 3
Aliette de Bodard2019

The great magical Houses of Paris – headed by Fallen angels and magicians – were, however temporarily, at peace with each other. Until House Harrier was levelled by a powerful explosion. Now that peace has become chaos, tearing apart old alliances and setting off a race in which each House hoards magic and resources to protect itself against another such blast.

Thuan, the Dragon head of the divided House Hawthorn, is still consolidating his power when war comes to his doorstep. Aurore – exiled from and almost beaten to death by House Harrier – sees her moment to seek power in order to protect her family, even if she must venture back to her destroyed former home to get it. And Emmanuelle finds herself alone in the middle of it all, driven to protect others, trying to piece together what has happened, and hoping – eventually – to make sense of it all.

None of them know what destroyed House Harrier, though . . . and when they do uncover that fiery, destructive magic then divided Houses, old enemies and estranged friends will all have to make a decision: stand together, or burn alone . . .

Titre original : Dominion of the fallen, book 3: The House of Sundering Flames (2019)