What we've learned so far: female, child of Sam and Daniel, "abilities" of some nature, and speaks Ancient
From the (mentally recorded) Journal of Davy Jackson
Here's what happened…
It was a normal day at Stargate Command, alarms were blaring. The Stargate was spinning up. General George Hammond entered the control room and looked at Sergeant Walter Davis and asked the question.
"Is anyone due back, yet?" Hammond stared out at the Stargate as it finished turning and established a wormhole and the iris slid into place.
Davis checked his computer screen and glanced up at the General before looking at the Stargate. "No one… sir." His voice trailed off as the iris began vibrating. He quickly checked a diagnostic screen. "Sir," Davis said incredulously, "the iris is… opening?"
"What the hell?" Hammond and Davis watched as the iris slowly unwound and sank back into the Stargate. Hammond blinked but grabbed the intercom mike, speaking into it. "Attention, security teams to the Gateroom. Repeat, security teams to the Gateroom."
A security team had already been put in position (standard procedure) and a second team rushed in to back them up. As they watched the gate tensely, a cloaked being tumbled through, head first. It landed in a heap two feet from the foot of the ramp. The iris closed and the gate deactivated.
Taking a moment to compose himself, the General clicked the mike on again. "Identify yourself!"
The being hidden in the swath of desert colors stirred slightly and a tanned hand emerged to push its cowl back, and a teenager with dirty blond hair and blue-green eyes looked out at the armed SF's. She blinked and stared around, unsure of her surroundings.
I was pretty confused the first time I crash-landed into the Gateroom. Had a massive headache, too. Rapidly repeated gate travel does that. And it was pure luck (good or bad) about what happened next…
Author's note: Kudos to who can guess as to what type of abilities I hint at. Heather'll prob guess so she won't count. ;)