Credit: Video Still

Tippi the bird may have been abducted by "A", but in this sneak peek of Pretty Little Liars Season 4, Episode 5: “Gamma Zeta Die” (July 9), the Liars finally find out a clue about the number they've been trying to understand.

In this clip, Spencer, Emily, and Aria discuss their frustrating lack of progress recently. But good news! Their school is having some sort of college visiting weekend, and Spencer realizes one of the colleges listed is from the same area as the phone number. On closer examination, the Liars realize both the area code and prefix from the college's number are the same as the mysterious number from Tippi, suggesting Tippi's number belonged to a student from the college.

Will this clue lead to some answers? We hope so!

Here's the official synopsis of the episode:

Spencer and Emily make plans to visit a nearby college, but they have very different agendas for their time spent on campus. Spencer's singular focus in figuring out Ali's apparent connection to the school contradicts Emily's real fears about her plans for after she graduates. And after a stinging attack by "A," Aria and her brother Mike don't see eye to eye regarding what's best for their parents.

Check it out below.

Credit: YouTube Photo: Pretty Little Liars Sneak Peek: A Clue on Season 4, Episode 5 (VIDEO)

Catch the episode on Tuesday, July 9, 2013 at 8 p.m. ET/PT on ABC Family.