DOOM’s Adult Swim singles series The Missing Notebook Rhymes has vanished from the internet. In a statement to Mass Appeal, an Adult Swim spokesperson said the network has ended its relationship with the rapper, cutting short the weekly trickle of new tracks that had been scheduled to continue until November 13: “Thus, the remaining Missing Notebook Rhymes will unfortunately have to remain…missing.” On Twitter, Adult Swim’s Jason DeMarco seemingly acknowledged the news and wrote, “😔.” A representative for DOOM confirmed the report to Pitchfork. Adult Swim reps declined to comment.

Releases in the series had included music with Kool Keith, Sean Price (“Negus, Jay Electronica, the Alchemist, and a song under his alter ego Viktor Vaughn.

While The Missing Notebook Rhymes is apparently no more, DOOM has joined with Buffalo rapper Westside Gunn for a new project called WESTSIDEDOOM. Listen to their first song, “Gorilla Monsoon,” above (via Hypebeast).

Read “Meet Jason DeMarco, The Reason Adult Swim’s Music Is So Good” on the Pitch.