American Horror Story writers are plotting their next scare. The FX drama’s sixth season will likely focus on Slender Man, a black-suited character (created as an internet meme in 2009) who stalks children, a source reveals in the new issue of Us Weekly.

“Someone else wrote the script, and AHS wants to adapt it to fit the show,” says the insider. “They have to buy the rights. Then they’re going to figure out the cast from there.”

Producers hope AHS: Hotel actress Lady Gaga returns for a second round. Adds the source, “They’re trying really hard to get her back!”

Gaga, a.k.a. Mother Monster, 29, won a Golden Globe January 10 for Best Performance by an Actress in a Limited Series or Motion Picture Made for Television. For her first-ever major acting win, she beat out Queen Latifah, Kirsten Dunst, Sarah Hay and Felicity Huffman.

As Us Weekly previously reported, the singer, who played a mother vampire on the drama, was anything but horrific on set. “After the first day of shooting, Gaga went out of her way to meet and chat with everyone,” an insider told Us last August. “She was really awesome, and couldn’t have been nicer.”