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480 pages, Hardcover
First published February 10, 2026
Petra is at the bottom of mage society as a sweeper. Mages doing magic produce dross (light). Sweepers don't do actual magic but clean up the dross after mages. Spinners can do a bit of magic relating to containment of dross. So Petra is a superior sweeper but can't do magic. Her mentors are spinners and more experienced sweepers who run the vault where all the collected dross is stored and shadows are destroyed.
Benedict Strom is a mage from her childhood. He has a project to make dross inert so it doesn't have to be stored. He hurt Petra's feelings in childhood. Benedict wants Petra on his project team, but she thinks it is dangerous.
Petra is at the bottom of mage society as a sweeper. Mages doing magic produce dross (light). Sweepers don't do actual magic but clean up the dross after mages. Spinners can do a bit of magic relating to containment of dross. So Petra is a superior sweeper but can't do magic. Her mentors are spinners and more experienced sweepers who run the vault where all the collected dross is stored and shadows are destroyed.
Benedict Strom is a mage from her childhood. He has a project to make dross inert so it doesn't have to be stored. He hurt Petra's feelings in childhood. Benedict wants Petra on his project team, but she thinks it is dangerous.