In a room inside the flying boat, Karsha appeared from a shadow in the center of the room. He quickly made his way to the boat's deck, followed by two shadows belonging to Morris. When they reached Oakwood City, Morris sensed the presence of four Great Sages and devised an escape plan for Karsha, though he didn't truly need it.
Morris's shadows, no matter the distance between them, allowed him or anything he wanted to travel between them. So when he sensed the presence of the four Great Sages, he left one of his shadows within Karsha's shadow and another inside a room on the boat.
All Karsha had to do was fall into his own shadow, and Morris's shadow hiding within would teleport him away.
