As we began to discover towards the end of Pretty Little Liars Season 2, the Hastings family is full of secrets. And on Season 3, Episode 3: “Kingdom of the Blind” (which airs Tuesday, June 19), we know that Spencer will uncover more family secrets. What is Rosewood’s most mysterious family hiding? Here are a some of the questions we still have about the Hastings. Hopefully we'll get some answers soon.

This post contains minor spoilers about upcoming episodes. For more on Wetpaint Entertainment's philosophy on spoilers, click here.

Melissa’s (Torrey DeVitto) pregnancy. We’ve been suspicious of Melissa’s pregnancy for a while now. And we know that in the upcoming episode, the secret Spencer initially discovers has to do with Melissa and her baby. Some theories include the possibility that Melissa was never pregnant at all; that the father of her baby isn’t former fiance Ian (Ryan Merriman); that Garrett (Yani Gellman) or someone else is the father; or that Melissa suffered a miscarriage or gave her baby up for adoption. Remember, Spencer only asked how Melissa was doing in the last episode (Season 3, Episode 2: “Blood Is the New Black”) — not how Melissa and her baby are doing.

The DiLaurentis connection. Mr. Hastings ultimately told Spencer the truth about Jason (Drew Van Acker) — that he was Jason’s father, meaning Spencer and Melissa are his half-sisters. Judging from photos of Season 3, Episode 4: “Birds of a Feather”, we’re wondering about Melissa and Jason’s connection. They’re the same age, and they were both part of the N.A.T. club. Melissa may have hooked up with Jason in the past, which, according to Alison (Sasha Pieterse) in a flashback, upset Spencer’s parents tremendously. Since we know that Mr. DiLaurentis will be a topic of discussion in an upcoming episode, we have to wonder if there aren’t any more strange relations between the DiLaurentises and the Hastings.

Mysterious money transactions. The Liars discovered that Alison had $15,000 in cash in her possession when she was killed. Spencer suspected her father of giving it to her so she would keep quiet about him being Jason’s father. He vehemently denied that, but we still have no idea why or how Alison had that money. We know that Jason inherited a lot of money from his grandmother — thanks, in part, to Peter Hastings doctoring the will — which he used to buy the ghost house in town. But that doesn't explain why he will soon be writing a check for $50,000. What is up with the DiLaurentis-Hastings money connection?

Missing links between Melissa and Alison. Remember when the Little Liars followed Ali’s trail and discovered that Ali had gotten a text from a former law office, which she wanted to investigate? That was the law office where Melissa had once worked as an intern. That, combined with the fact that Melissa was caught on camera searching for Ali in her bedroom on the night she was killed — not to mention their mutual issues of jealousy, and Mr. Hastings’ confession that he hired a private detective to watch Melissa as a suspect in the murder — means we have a whole world of unanswered questions about the relationship between those two girls.

What else can you think of?

Catch an all-new episode of PLL on Tuesday, June 19 at 8 p.m. ET/PT on ABC Family.

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

Get your Pretty Little Liars fix: Like us on Facebook and Follow us on Twitter and Tumblr!