Real Name: Suzie (last name still unknown)
Age: approximately 13 (confirmed by todd nauck)
Weight: not much, since she exists as a gas
Super Powers: The Secret is able to change her gas form into any appearance. She can slip though the smallest cracks. What she can and can't do hasn't been discovered yet.
Special Abilities: Not applicable.
First Appearance: Young Justice: The Secret #1
When captured by Young Justice (Superboy, Robin and Impulse) Secret Had this explaination to give: "I've been a ward of the DEO for as Long as I can remember. I don't have any memories of anything else but being locked up in my airtight room and being observed. They hated my powers, and wanted them. As I got older, I realized that my room wasn't as airtight as they thought. Being Etheral, I soon found I could travel the facility undetected. That was when I found out I wasn't alone. Ther were dozens of us orphans. Subjects. Different people, kids mostly, being kept there, sad and scared, studied and tested. The tests were horrible...and sometimes they were...I saw sometimes...It was...They were...BAD! When the doctors found out what I'd seen, what I knew, they said that I knew too much. They decided to send me to the WABE. That's where subjects go and don't come back. Bad Things happen there." On here way to the WABE, Secret escaped into a nearby toen. after the townspeople were evacuated, Robin, Superboy, and Impulse where sent in to try and capture, once they did, Secret told them the truth about her past. After hearing this, the boys dcided to set her free, and sent back a container of smoke, instead of her. After her release, Secret spent a few moths exploring the world on her own, and eventually ended up back with Young Justice. She has been living the life of a superhero ever since, but recently, new developments have come up in the mystery of Secret's past.
Young Justice #6
Young Justice #7
Young Justice #11
Young Justice #12 & #13