Scott was a time-traveler, he traveled to the time when Logan fought with X24.
Logan became old, and he took a infant to his hometown. Then he met the piece of Scott's soul.
Some work about Cats :
Logan was attacked by some evil magicians and he became a lovely cat.
Logan adopted a kitty.
Logan was a mutant cat who can turn to a person. Scott fed him and X23.
柳恩格曼, I like her all of the Scogan works ：)