Final Fantasy VII Walkthrough

2.14: Back to the Ancient City

After speaking with Bugenhagen, the old man decides to go and have a look at the City of the Ancients. Just before leaving, Cloud will ask Bugenhagen if he can store the Huge Materia in his machine. Use it right after their talk and approach the Blue Materia. If you possess both Bahamut and Neo Bahamut, the huge Materia will resonate and give a loud roar, and at the end of it you'll be in possession of the Bahamut ZERO materia, one of the most powerful summons of the game. Approach any Huge Materia to get back down the machine.

Prior to actually going to the Ancient City, you should embark on your recently acquired submarine, and head for the northern seas. In an underwater corridor you will find a strange item, thousands of years old: the Key of the Ancients. While you're underwater, you'll do well by going to the Gelnika; an opportunity to get good items will soon disappear.

After claiming the Key of the Ancients for yourself, land with the Highwind near the Ancient City and enter it. Head left towards the room with the lotus-shaped crystal, and let the game guide you from there. You will learn more about Aeris' wish to protect the planet and the White Materia.

Upon embarking on the Highwind after the Ancient City events, Cait Sith will call you on your phone; an FMV will display, and you’ll then decide to head for Midgar. But just when you reach your airship, something will stop you. A Weapon is getting ready to take revenge against Midgar.