Black Cat:
All right! Finally, he sent the right person! Klaus is the only one who's ever even come close to achieving it. Alas, he too failed in the end... Now he spends his days loafing about Goddard Castle Town, getting drunk and fishing. He could tell you some things about forbidden power!
Here's a description of the beast that maimed me...
Now, go find Klaus, and don't come back until you've gotten the power!