All the Birds in the Sky

An ancient society of witches and a hipster technological startup go war as the world from tearing itself. To further complicate things, each of the groups’ most promising followers (Patricia, a brilliant witch and Laurence, an engineering “wunderkind”) may just be in love with each other.

As the battle between magic and science wages in San Francisco against the backdrop of international chaos, Laurence and Patricia are forced to choose sides. But their choices will determine the fate of the planet and all mankind.

In a fashion unique to Charlie Jane Anders, All the Birds in the Sky offers a humorous and, at times, heart-breaking exploration of growing up extraordinary in world filled with cruelty, scientific ingenuity, and magic.

Synopsis from Open Library.