When a series of kidnappings took place on Mobius Mildred told Sonic that she had a lead to the disappearing animals but she never got as far as to say if anyone really had disappeared in front of her. She and everyone else in the area was mysteriously kidnapped while Sonic wasn't looking. Sonic later figured out it was the evil galactic huntress, Katella who was responsible for the kidnappings. Sonic rescued Mildred and the others from Katella's spaceship.