how can i finish the tower of spirits in spirit tracks after finishing আগুন realm?

I have the game and i'm stuck at the very last part of the tower and it's the one where u find the golden compess and i'm stuck so i can't help but i do need help!

I don't remember how to do it. When I played it, I was stuck in the same place. But if আপনি want help, আপনি can maybe look from Youtube.