Miller is working on the book with writer Thomas Wheeler (Lego: Ninjago Movie) and according to Deadline, the same creative team who are working on the book will also be working on the series simultaneously. Its said that they will actually get to explore the characters in more detail in the series than in the book. So... I guess I'll just wait for the series.
Cursed is a re-imagining of the Arthurian legend, told through the eyes of Nimue, a teenage heroine with a mysterious gift who is destined to become the powerful (and tragic) Lady of the Lake.