While Aquaman ended up as the highest-grossing DC movie of all-time ($1.09 billion worldwide), a spinoff surrounding the Trench is reportedly in the works.

According to a Hollywood Reporter exclusive, Warner Bros. is making plans for a spin-off to its billion-dollar hit Aquaman — in the form of a modestly budgeted horror movie with none of the original main cast involved. The film, set around the underwater kingdom known as The Trench, would be produced by Aquaman’s director, James Wan, and its co-producer, Peter Safran, who has a long production history on horror films like The Conjuring and many of its spin-offs.

Wan noted on Twitter that he fell in love with the Trench and its designs during Aquaman pre-production and had secretly hoped to explore it further.

Details are limited, but The Hollywood Reporter says Warner Bros. has commissioned a screenplay from Noah Gardner and Aidan Fitzgerald, two former employees of J.J. Abrams’ Bad Robot production company.

It’s no surprise DC and Warner Bros. are looking to make an Aquaman spinoff, as the film pulled in over $1 billion at the worldwide box office, making it DC’s biggest hit since The Dark Knight Rises. Because of the success of this solo film, DC is reportedly less focused on the DC shared universe than it had been previously.