"Pretty Little Liars" airs Monday on ABC Family (ABC Family)

In this week’s episode of “Pretty Little Liars,” Mona also received anonymous text messages, all signed by the infamous ‘A’. 

Last week, the girls met with Vivian Darkbloom’s friend, Jonah, who offered them information about the sender of Allie’s anonymous text messages in exchange for $2,000.

After getting the money from her “secret relative”—whom we know is Jason Dilaurentis—Spencer went with Aria to meet up with Jonah, who gave them an unknown address and nothing else, since he could only trace the text messages back to a location.

They quickly found that the address was to an old law firm (an important fact to remember for later in the show).  

Meanwhile, Mona started getting text messages from ‘A’ telling her to out Hanna’s mom, Ashley. 

“Hanna’s mommy saved her ass. Who’s gonna save yours?” 

In this text, ‘A’ was referring to Hanna’s shoplifting incident from last season. You know, the one where Ashley slept with Officer Wilden to protect Hanna’s reputation. 

A revealing picture of Ashley and Wilden was also sent to Mona, along with a police report of Hanna’s crime and a note that read “yesterday’s trash, tomorrow’s news.” 

At this point, Mona was forced to make a very difficult decision. Either she herself would face time behind bars for shoplifting, or she would go to the Rosewood Observer with the police report and photo. 

Mona is definitely a suspicious character, but after turning herself in during this week’s show, we realize that not only is she not ‘A’, she also seems to be a pretty genuine friend.

The mystery continued to unveil as the girls received a new video clip from Caleb. In it, someone was heard stomping up the stairs in Allie’s house, and you won’t believe who it was.

Melissa Hastings. The perfect daughter, the tragic victim, and Allison’s murderer? Something just doesn’t seem to add up, but one thing is for sure, Melissa had something to do with Allison’s death that night.

Suspicions rose even further as Spencer attempted but failed to confront Melissa. 

First, she ditched Spencer completely, telling her that class ran late, but in reality, she was with Officer Garrett. 

If that wasn’t suspicious enough, Melissa’s previous internship sure was.

Remember the law firm mentioned earlier? Well, listen to this. Melissa used to intern there, according to Hanna’s mom. Is she somehow connected to the texts that Allie was receiving before she died?

Aside from all this, Spencer heated things up with Doctor Wren, and Aria went on an emotional rollercoaster ride as Ezra prepared to leave her as her mom prepared to accept them. 

The show ended with Emily receiving a police visit regarding her missing girlfriend, Maya. 

But she isn’t the only one missing now. After a quick visit and some smooth talking at the Hastings household, Melissa lured Spencer to an unknown location. 

Is Spencer safe? Watch next week’s episode to find out!

Reach reporter Olivia Steinberg here

Check Neon Tommy every week for Olivia's reviews of "Pretty Little Liars."