Ben and Open
The Darkness was full of fallen Jedi, somehow. He could hear their voices, well enough to make out who they were, but there were no understandable words. That suited Obi-Wan fine, as he had no desire to hear younglings telling him of how Anakin had cut them down in the halls of the temple, or hear Aayla whispering to him about the way her clone troopers had shot her in the back with no warning, just like Cody had.
The fog wound itself round him, but could find no way of breaking through his shields. It grabbed at his limbs as he moved through the forest, following the sudden pulse of Dark he could sense within the Force. Sight was mostly useless to him, so he navigated by the Force, his senses cast wide like a net. There were other powerful beings moving towards the same general area, including at least one Force user - Knight Montrose, most likely - and something that was almost incandescent to his Force-sense that he'd never encountered before.
And then he paused. Someone was up ahead. "Hello there," he said as he moved closer, to alert them of his presence.