The Grim Knight

"Dark Nights: Metal" is a 2017–2018 monthly crossover comic book storyline published by the comic book publishing company DC Comics, which consisted of a core eponymous miniseries, and a number of other tie-in books. Premiering in June 2017 and lasting until April 2018, the plot was written by Scott Snyder, with art by Greg Capullo, Jonathan Glapion and FCO Plascencia. The story closely links with Snyder and Capullo's run on Batman during The New 52 DC relaunch.

The story involves Batman discovering a Dark Multiverse that exists beneath the core DC multiverse. It is revealed that both multiverses are connected through mysterious metals that Batman has encountered over the years. His investigations eventually result in him releasing seven evil versions of himself from the Dark Multiverse, led by the dark god known as Barbatos, who plans to unleash darkness across every Earth.

A soundtrack featuring songs inspired by the graphic novel was released as an exclusive vinyl picture disc on September 28, 2018. The six-track EP features heavy metal songs by Jerry Cantrell, Chino Moreno, Brann Dailor, Maria Brink, Alexis Krauss and Jason Aalon Butler.

The idea of creating a dark multiverse came from Snyder, who was inspired by watching the science documentary television series Cosmos: A Spacetime Odyssey with his five-year-old son. He became fascinated with the concept of dark matter, prompting him to question "What if the Multiverse essentially has these 52 universes, but has almost this ocean of possibility, this ocean of almost reactive matter beneath it that's like a Dark Multiverse".