You are welcome! Pay close attention to what the townspeople tell you, they have a lot to tell you that's important! Enjoy the game!
Oh man, that damn key!
Problem for me is: the village is so far removed from the dungeon that I forgot all about any sort of hint. Found the secret by pure trial-and-error. Genuinely felt like an 'NES era' secret though, so that's great.
One super-confusing aspect to me was that the second magic you acquire appears WAY down the list (since it comes by much later in the original game.) I was absolutely convinced that I had inadvertently skipped some very meaty parts of the game, especially after crossing some places seemingly requiring the downward sword, Jump and Faery magic spells.
Would recommend rearraging Magic menu spell order, if technically possible.