What goes up must go down
Its time to climb! Once you get almost to the top, though, its time to go down. Confused yet? I think once you get there, it will be more clear. You are looking for a very small black nano with a magnetic personality. You might need tweezers to extract the log to make your mark. Good luck & watch your step.
Lbh'yy unir gb tb zbfg bs gur jnl hc gb gur zlfgrel qbbe gb svaq guvf bar.