Darth Fulgur looked around the room, searching for the secret entrance to the Holocron Vault, knowing it would be concealed to the best of the Jedi's collective abilities. He reached out in the Force, searching the area for something...anything...to indicate some sort of concealment.
Finally, he found it. A shell of Force energy, surrounding an entire section of the Library. He moved over to it, drawing on the Force.
"Serpington, get down here," he called. With a surge of power and a flash of lightning, he blew through the barrier. The entrance to the Vault appeared out of thin air, and Darth Fulgur smirked.
"Come, Serpington," he said in a low, menacing voice, full of triumph. "The destiny of the Sith awaits."