Hmm.. now I get it why the king transform into dragon coz he never return the pendant to abel.. maybe the reason why the king never returned the pendant to his regas because maybe he think that if he returned the pendant abel will disappear or gonna die again?. he will wait for another reincarnation of him again?. But what if there's no reincarnation for the 3rd time?.. or rather he just choose to die for him to reincarnate and look for the new abel..
I think he is mentally illed the experience that he got 10 years ago was really traumatized for him to say that he's already dead. Gosh how I wish coca help him healed.