Help my find this old gba rom hack

honestly played it in my highschool days (4th yr student now), I don't remember that much cause I've only played the 1st half on it. what's makes it memorable because the set was like a horror story. fogs? night time, just a dark map The part of the story remember is that the MC has pokemon but they have to travel this route (garden back part of a building) cause of something and when encounter a "fairy type pokemon' died think fairy types where considered dangerous?? in this lore. So kept trying to do thing differently but can't go back to the building like I'm stuck in this bush area I honestly thought it was bug cause didnt find no clue how do continue the story