Who is Bethany Young? It's the biggest question on Pretty Little Liars at the moment, and it's no surprise that the show's creative fandom has come up with all sorts of fun theories about how this seemingly random Radley patient is connected to the larger story.

Every week, we like to dive into the wilds of Tumblr and pick an interesting fan theory to highlight. This week, we want to talk about the idea that Bethany might be related to none other than Wren Kingston (Julian Morris), which we think is a very intriguing idea.


Why do we think this theory could have legs? Here are a couple of reasons.

It explains Wren's involvement. We've always been confused about exactly why Wren is so tangled up in everything that's happening in Rosewood. His relationship with Melissa alone doesn't seem like a compelling enough explanation, but if he had a missing sister — whom he perhaps suspected was linked to Ali's disappearance — it would clear up a lot of the questions we have, and it would even give Wren a plausible reason for being "A", if the show goes that direction.

Wren and Radley. This would also explain why Wren's so invested in what's going on at Radley. Plus, as this Tumblr user reminds us, Wren's father actually had a mental illness, so it's plausible his theoretical sister inherited that. Everything ties together nicely.

The red drawing. As several Tumblr users have noted, the red roses in Bethany's drawing seem reminiscent of the red coat Wren once put in an otherwise black-and-white sketch. Maybe a subtle indicator that Bethany and Wren are related?

What do you think of this theory — is it possible, or totally crazy? Sound off in the comments below.

Catch the next episode of Pretty Little Liars on Tuesday, July 22, 2014 at 8 p.m. ET on ABC Family.

Rebecca Martin is an Associate Editor at Wetpaint Entertainment and our resident Game of Thrones, Breaking Bad, and genre TV expert. Follow her on Twitter and Google+!