In one of the first photos from Pretty Dirty Secrets, the Pretty Little Liars  web series set to premiere after the Season 3 finale (Season 3, Episode 12: “The Lady Killer”) on August 28, we see an old, not-so-friendly face. Lucas (Brendan Robinson) finds himself staring into the dead eyes of a character we would have been perfectly happy to never see again.

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In this spoiler photo, Lucas is standing opposite one of the anonymous baby-face monsters from the Season 2 Halloween prequel (Season 2, Episode 13: ”The First Secret”). In that creepy episode, someone dressed in the same costume seemed to be stalking Alison (Sasha Pieterse) everywhere she went. And at the end, the Little Liars realized that there was more than one baby-faced monster at Noel’s (Brant Daugherty) Halloween party.

Who these creepy characters are is still a mystery, but whoever they are, they’ve survived for over a year. Hopefully we’ll get some more information once Pretty Dirty Secrets begins!

Find more Pretty Little Liars spoilers here.

Catch an all-new episode of PLL on Tuesday, August 21 at 8 p.m. ET/PT on ABC Family.

Molly Friedman is an editor at Wetpaint Entertainment. Follow her on Twitter @MollyFriedman.

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