Who is ron in the story knife by Sarah Ellis?

In this story, Ron is the seal because he had webbed fingers, just like the seal, he had a line on his forehead, which is the scar from the knife that Curtis accidently threw at him, they were both short, and they both had black "hair". Also, where would Ron get the knife if he were'nt the seal? The knife also had the blade missing - the one that Laurel threw. Doesn't all this make sense if Ron is really the seal? I say yes. -Otherwise, where would he get Curtis's exact knife?, why would he have a random white line on his forehead?, why would his fingers be webbed?