User blog comment:Roger6881/How to Train your Dragon2 THIS YEAR!!/@comment-123.165.11.29-20120418111814

Maybe involving scenes under the sea surface.Hiccup's Toothless has been in the sea for at least twice,one in the movie,to 'greet' Astrid,another in the short one ,the dragon gift,in which Toothless went for Hiccup's helmet.Also ,the book of dragons said a lot about tidal ones like Saculdron or Thunderdrum.The book ,on which the movie is loosely based,also involves underwater plots even since the first one.