'A brand new series from the bestselling new fantasy author of the last decade
'In a world where an industrial revolution is powered by magic, Tyen, a student of archaeology, unearths a sentient book called Vella. Once a young sorcerer-bookbinder, Vella was transformed into a useful tool by one of the greatest sorcerers of history. Since then she has been collecting information, including a vital clue to the disaster Tyen's world faces.
'Elsewhere, in a land ruled by the priests, Rielle the dyer's daughter has been taught that to use magic is to steal from the Angels. Yet she knows she has a talent for it, and that there is a corrupter in the city willing to teach her how to use it - should she dare to risk the Angels' wrath.
'But not everything is as Tyen and Rielle have been raised to believe. Not the nature of magic, nor the laws of their lands.
'Not even the people they trust.' (Publication summary)
'Tyen is teaching mechanical magic at a school respected throughout the worlds. News arrives that the formidable ruler of all worlds, long believed to be dead, is back and enforcing his old laws - including the one forbidding schools of magic. As teachers and students flee, Tyen is left with no home and no purpose... except the promise he made to Vella, the sorcerer imprisoned in a book. Tyen must decide what he is willing to do to free her.
'After five years among the tapestry weavers of Schpeta, Rielle's peaceful new life has been shattered by a local war. As defeat looms, the powerful Angel of Storms appears and invites Rielle to join the artisans of his celestial realm. But what will he require in return for this extraordinary offer?' (Publication summary)
Five years have passed since the Rebels confronted the Raen. Five years, in which the boy Rielle rescued, Qall, has safely grown up among the Travellers. Five years, in which Tyen has made a new home for himself, hidden from those who call him a traitor and the Spy.
Five years of chaos in the world, barely contained by Baluka and the Restorers. Worlds are at war, some overrun by machines, some drained of magic as sorcerers seek immortality.
As war threatens Rielle and Tyen's hard-won peace, and Qall comes of age, loyalties will be decided and tested. The promises they have made could change everything. Qall's very existence depends on them.
Because Dahli has the means to restore the Raen to power, and he will stop at nothing to succeed. (Synopsis)