WINNER OF BEST NOVEL IN 2016 NEBULA AWARDSFINALIST FOR BEST NOVEL IN THE 2017 HUGO AWARDSChildhood friends Patricia Delfine, a witch, and Laurence Armstead, a mad scientist, parted ways under mysterious circumstances during middle school. But as adults they both wind up in near-future San Francisco, where Laurence is an engineering genius and Patricia works with a small band of other magicians to secretly repair the world''s ever growing ailments. But something is determined to bring them back together—to either save the world, or end it.

WINNER OF BEST NOVEL IN 2016 NEBULA AWARDSFINALIST FOR BEST NOVEL IN THE 2017 HUGO AWARDSChildhood friends Patricia Delfine, a witch, and Laurence Armstead, a mad scientist, parted ways under mysterious circumstances during middle school. But as adults they both wind up in near-future San Francisco, where Laurence is an engineering genius and Patricia works with a small band of other magicians to secretly repair the world''s ever growing ailments. But something is determined to bring them back together—to either save the world, or end it.