User blog comment:Wyvern Queen Kym/A Beginner's Guide to Love Interests/@comment-45.49.117.243-20160324095214

For those planning to romance Mercedes Marten but find themselves unable to find her after the slaying of the Hydra, she is located in the Gran Soren Castle in the visitor's room in the second floor, when you go into the audience chamber, just head straight to the stairway far behind from the Duke's chair then turn right and you should find the visitor's room.