Risolva

 was looking for the Eighth Doctor on Earth and found him a prisoner of Oliver Cromwell. She told him about how The Clocksmith came to her world and dismantled her to get the rest of the Solvers to follow him. She had heard of the Doctor on her way to find her people again and asked him to help her. When they found her people she got them back on her side and forced them to tear the Clocksmith apart and asked them to hide the clock across Europe. (AUDIO: The Doomsday Chronometer)