Quote from bartendorsparky:
where exactly are you stuck?
after getting charge beam, return to gathering hall (the room with the adjacent save station), and climb to the top, and enter the door. continue through the next two rooms, and when you get to the third, larger room, immediately turn left and follow the path to burn dome.
after getting charge beam, return to gathering hall (the room with the adjacent save station), and climb to the top, and enter the door. continue through the next two rooms, and when you get to the third, larger room, immediately turn left and follow the path to burn dome.