After completing all four temples, return to the Tower of Spirits for the final ascent. The remaining floors are the most challenging, featuring all types of Phantoms and complex multi-floor puzzles. You'll need to utilize all your acquired items and Phantom Zelda's abilities strategically. The puzzles often require precise timing and coordination between Link and Phantom Zelda. Pay close attention to the map and any hints provided by Anjean. Your goal is to reach the very top of the Tower, where the Spirit Flute is located. This final climb will test all the skills you've learned throughout your adventure.
