On the Mar. 24 episode of AMC's "The Walking Dead," viewers saw one of the groups arrive to Terminus, which is said to be a safe haven and shelter for those who survived the zombie apocalypse. The place is shrouded in mystery and also seems a little (make that a lot) creepy.

Not much is known about Terminus but it will most likely be a very big focal point for Season 5. Here's everything we know about Terminus and Mary, the lady who happily greeted the group at the entrance.

1. So far the only ones to safely arrive at Terminus is Glenn, Maggie, Bob, Sasha, Eugene, Rosita and Abraham. Rick, Carl and Michonne as well as Carol, baby Judith and Tyreese are on their way. Daryl is also headed towards Terminus with a group of men who want to kill Rick. (This can't end well).

2. Terminus was first introduced to viewers during a radio broadcast. In a previous episode Daryl, Michonne, Bob and Tyreese were riding in a vehicle when they overheard a message on the radio alert survivors to a safe place they could go. The message said anyone who survived the outbreak was welcome.

3. In the Mar. 24 episode all of our favorite characters came across several signs that helped guide them towards Terminus. "Sanctuary for all. Community for all. Those who arrive survive," the sign read.

4. When the first group gets there they are greeted by Mary, who appears to be the person who welcomes all the survivors. Noting is known about Mary but she might have been referenced in an earlier episode featuring Carl, Michonne and Rick. Carl and Michonne were on a supply run when Michonne stumbled across a spooky looking painting of a woman with her mouth cut out and what looked like blood splattered across the painting. The woman in the picture looked like Mary.

5. Terminus is not from the comic books but it could share certain elements from it. As Heavy.om points out, at this point in the comics the Hunters aks Cannibals are introduced. Could Terminus be hiding a very dark secret?

6. Mary is not the only person at Terminus. When Glenn, Maggie and company arrived, the gates were not locked and it was a good minute before they ran into someone. Executive producer Greg Nicotero told The Hollywood Reporter that Mary was the first person the group met but she definitely won't be the only one at Terminus.

7. Robert Kirkman described the sanctuary in a previous interview and had this to say: "Terminus could be what it is on face value or it could be hiding something darker. We do try to change things up, so it's entirely within the realm of possibility that Terminus is all lemonade and sunshine and recliners and pajamas. So we'll see, maybe this season has a happy ending."

What do you think about Terminus? Is it a safe place for the groups or do you think it's hiding something?