Deadline reports that HBO has acquired the rights for BBC One’s adaption of J.K. Rowling’s Cormoran Strike series. We reported a rumor of this partnership back in November of last year.

Tom Burke will star as the detective in Cormoran Strike, which will air as three separate event series, the three-hour The Cuckoo’s Calling, two-hour The Silkworm and two-hour Career Of Evil. Jo also confirmed via Twitter that Robin Ellacott has been cast but left us in suspense as to who it will be.

Just cast her and she's perfect. Wait and see! https://t.co/PdKsm1HPeQ

— J.K. Rowling (@jk_rowling) October 19, 2016

J.K. Rowling executive produces the series and two writers have worked on the episodes. Ben Richards wrote The Cuckoo’s Calling and The Silkworm, and Tom Edge wrote Career of Evil. Michael Keillor will direct The Cuckoo’s Calling. Filming starts this fall in London.