Taking up the “sewing” idea, which is interesting. Maybe he’s holding them captive until he finds the right one to join with, not just become a part of, but actually inhabit the body of another person. Maybe he wants “form”.
Are you suggesting the Shadow possesses Bae? If he does, that would sorta mean that Bae is both Peter Pan and not Peter Pan at the same time. Bae would only be acting like Peter because Peter is controlling his body. It would also explain why Bae would even call himself Peter Pan. Adam & Eddy would also technically be correct that we won’t see Peter Pan himself until Season 3, since if this theory is true we would likely only see Peter in the flesh then. I’m torn on which theory to side with, this or the Hook is Peter theory….