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Pretty Little Liars

Pretty Little Liars Spoiler Photos: Season 4, Episode 17 — “Bite Your Tongue”

Check out these sneak peek pics from Pretty Little Liars Season 4, Episode 17: “Bite Your Tongue” (January 28). In the suspenseful episode, the Liars continue to get their Nancy Drew on when Spencer tries to solve a few of the mysteries from Ali's diary and Hanna comes up with a plan to figure out who's in Ali's grave.

Read on for ABC Family's full episode synopsis. What do you think of the pics? Sound off in the comments!

Hanna’s new interest in crime novels helps her to come up with a plan to try and figure out whose body is in Ali’s grave. While Hanna is on her hunt, Spencer is working overtime to decipher the stories in Ali’s diary which she hopes will reveal the identity of Ali’s mystery man. But with both girls hot on the trail, will their work lead them straight into “A’s” path? Meanwhile, Aria is upset with the new friend Mike has made and Emily’s dad is concerned about her behavior.

Catch the next episode of Pretty Little Liars Season 4 on Tuesday, January 21, 2013 at 8 p.m. ET on ;ABC Family.

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