Credit: Video Still

The Liars hunt down another clue in this sneak peek of Pretty Little Liars Season 3, Episode 20: "Hot Water" (February 19).

In this video, the Liars head to the costume shop to see if Shana (Aeriel Miranda) has any useful information to share. Does she? Watch the sneak peek below to find out.

Credit: YouTube Photo: Pretty Little Liars Season 3, Episode 20 Sneak Peek: Shana Isn't Helpful (VIDEO)

Find more Pretty Little Liars spoilers here.

Catch the episode tonight, February 19, 2013 at 8 p.m. ET/PT on ABC Family.

Rebecca Martin is an editor at Wetpaint Entertainment. Follow her on Twitter @BeccaDMartin.