Darth forced his way through the underbrush towards the mysterious light. Breaking out into a clearing, he discovered it was coming from the inside of a small walled area. Curiously, his wounded knee-which had been getting unnoticeable-returning swiftly.
"Ow." Darth winced.
Limping around the corner to where the gate had been, he started.
The inside was a luxurious courtyard. Sitting at the far end of the courtyard, relaxed in a velvet chair, was a woman: tall and fair, with flowing brown hair.
"Kate!" Darth exclaimed. "So Bill was right..."
Kate smiled. "Hello sweetie, glad you finally joined me. You sure took your time about it though." she said with a wink.
Darth looked beyond where she was sitting. There was a frame of glass, with a surface that looked like water. In it, Darth could see the smoking wreck of the Skycity, and the battle that was being rapidly lost. Darth clenched his fists.
"Kate." he said quietly.
"I can't stay here. I can still do some good back there."
"But you just got here!" she pouted. "15 years by myself, and as soon as you get here you run off again."
"I know. I'm sorry. But there are things still left undone."
Darth embraced Kate.
"I'll be back eventually. I will miss you. But I need to go before it's too late."
Breaking from their embrace, Darth checked to make sure his lightsaber hilt was attached to his belt.
"Goodbye Kate."
"Goodbye-" Kate's words were cut off as Darth stepped through the portal. His vision dimmed a moment with the glare, then cleared as the mask adjusted for the dark clouds and smoke billowing.
He saw a large troll commander standing just beyond him, jeering as it's troops overran another position.
Darth unclipped his lightsaber and ignited it.
"Hey you!" he yelled at the troll. "Bring it, mud-mind!"
[Hope you enjoy a little back story mixed in there. Might work a bit more in as it progresses.]