He’ll be co-writing along with Dan DiDio and Justin Jordan.

At DC’s Meet the Publishers panel at New York Comic Con 2017, publishers Dan DiDio and Jim Lee were joined by a surprise special guest: legendary writer Grant Morrison. Morrison talked about a few different things, including his involvement in Wonder Woman: Earth One, and the upcoming Syfy television adaptation of Happy!. He also announced a new piece of news: He’ll be co-writing Sideways along with Dan DiDio and Justin Jordan.

Sideways is a Dark Matter tie-in book that was announced in April along with the other Dark Matter series. It was not previously known, however, that Morrison would be attached to the project.

Other details are unknown at this time, but with Grant Morrison involved, you can be sure it’ll be good.