Even amidst all her responsibilities, Darth Occlus always makes time to review the reports from her archaeological teams. The knowledge of the ancient Sith is hers by right only so long as she is the first to claim it. The Sphere of Mysteries is always snapping at her heels, looking for shortcuts in their research. So she is one of the first to know that one of her teams at a very promising site is being stalked by some sort of monster, people vanishing without a trace. Now, unexpected disappearance are, well, not unexpected in this line of work, but typically there are bones or blood spatters or tattered gear or evidence of some sort. Not so in this case. Men and women along without their entire loadouts, gone without a trace.
Worthy of her attention, she would judge. Whether this monster is a guardian for something greater, or a power to harness in itself, she will face it and prevail.
So off she takes herself to Derit IV, to rendezvous with the expedition. She ascertains the pattern by speaking with the survivors and sets off on her hunt. Which is quickly successful, of course. Occlus is a Sith Lord and incredibly strong in the Force. One would have to be a great deal more powerful than some simple- giant snake with a mirror face? Hm. Not what she was expecting, but it should be simple enough to deal with. It begins to lunge, she makes to parry with her lightsaber-
-and then she is elsewhere.