The Doctor's Daughter

They meet, they get along well, they fight, they win.
After an adventure, the Doctor decides to take care of Cathy, the girl who fought brave on his side.
Soon they form a strong band, just like a father and a daughter.
But while he takes care of her, he does not realize, that she takes also care of him. Giving him what he wanted most: A Family.
But it stays not as peaceful and innocent as they would wish...

(I don't own the cover picture
Credit to the artist)