There was this little boy who I think was chinese.I remember him sitting by the lake talking to nobody and I think there was a monster ( dragon or something? ) inside that lake.As I remember it , it turned out that the monster was his mother and she had become a monster due to a spell or something like that (!? ) but maybe that's not true cause in my mind it's pretty vague. I also remember that the monster dies in the end!
Appreciate any help!