Slayhelm Castle is a dungeon in Wild Arms 2.
Wild Arms 2[]
You have two pathways open to you, on either side of the main room. The center door is locked for now. EAST PATH Head N after you go in the door and straighten the picture on the wall in the room you come into. Go through the door this opens, watch a little scene from Brad's past, and open the treasure chest. Go back to where you first came in from the main entrance and head E. Go up to the room with blocks and holes blocking your way. Place a bomb on the greenish floor under a stack of boxes to collapse that section of the floor, letting you advance. Go down the stairs and press the blue switch on the wall to let you in to the Amazing Stone.
WEST PATH Head N to the library. There's a purple book on top of one of the bookshelves. Kick the shelf to knock the book off and pick it up. Along the next wall, examine the bookshelves to find the one that is missing a volume. Place the Adult Mag in this slot to move the bookshelf, revealing a hidden room with another chest. Now go W from where the corridor branched and up the stairs. In the room with the giant swinging fork, kick it from behind to get launched to the other side of the pit. Get the chest and head out the back door.
Enter the double doors from the Amazing Stone after doing completing either of the two paths. Open the chest and return to the main room, where the center door is now open. If you go down the stairs, you can read a plaque that gives you hint on how to reach the switch. Go back to the top of the stairs and kick the column on the E side. The columns will fall and hit the switch, opening the door for you. Open this last chest and head back to the entrance.