Final Fantasy II/Mission to the Snow Cave

Salamando
When you talk with Cid about his Airship, he will mention that it is powered by the Sun Flame. When you return to the king with this information, you will be told about the Goddess Bell. Hilda will send you back to Salmando to track down the location of the bell.

Look for Josef in the top right house in Salamand. Ask him about Goddess Bell and he will join you and help you retrieve the Snowcraft hidden in 1st floor of Semite Caves. It's behind and right of the blue rock, which you will see the moment you enter the cave. After you have retrieved the snowcraft, exit the cave and move to the northwest, to reach the snowfield. The entrance to the snowfield is on the left edge of the snowfield. Walk to the extreme right end of the snowfield using your snowcraft and enter the cave.

Move the lowest level and enter the room on the bottom right. You will see a few furry creatures there. Talk to the one on the top left corner of the room and Guy happens to know how to communicate in that language. The creature will tell you that the Goddess Bell is in a hidden room. You can find the entrance to the right edge of the room.

In the final room, the creature in the southeast corner will block access to the Goddess Bell. It is an adamant turtle, which is most vulnerable to Ice magic. It's defense and attack can also be reduced by using the Ancient sword found earlier. When it is defeated, you can retrieve the Goddess Bell and return to the exit through the door to the right. Upon reaching the exit, you will encounter Borgan who will bock the exit. He can be defeated using regular attacks, but he will sometimes case CURE 3 on himself. After the battle, Josef will be killed by a trap while sacrificing himself to save your group.

Kashuan Keep
Bring the sad news to Princess Hilda and she will tell you that you need to find Cid immediately. Head straight to Kashuan Keep and you will see Princess Hilda and Cid upon entering.

Use the Goddess Bell on the locked door at the top, above Sunfire, and the door will unlock itself. You will find Prince Gordon upon entering and he will join you to find Egil's Torch. Get all the treasures in this map and finally the Egil's Torch. After retrieving the Egil's Torch, exit to 1F and use the torch on the Sunfire. The Sunfire will be transferred on Egil's Torch. Exit the Keep and you will see Cid's airship get captured by Dreadnought.

Dreadnought
Head back to the Altair and speak to everyone in the room. You will find out that Princess Hilda and Cid have been captured by the Dreadnought, but it requires replenishment and the replenishment location is to the Northwest of Altair. Head Northwest and enter Dreadnought. Go through the map to find Cid and Princess Hilda. Cid will tell you to throw the Sunfire into the engine. Go to the 5F which is the engine room to throw the Sunfire into the engine. A Dark Knight will appear and ask what have you done to the engine. Maria will recognize the voice but there is no time to talk here as the ship is about to blow. Your party will auto exit the Dreadnought and head back to Altair.

Go into the King's room and you will find that the King is about to die. Before you do so, unequip Gordon's items as he will leave you after this section. The King will ask Gordon to take lead of his army. He asks of Minwu to break the seal binding the Ultima Tome. He asks Firion to head to Deist, home of the Dragoons, to search for last standing Dragoons and their Wyverns. Lastly, he asks that you all take care of Princess Hilda. After which, he leaves the world. Gordon and Minwu leaves the room to handle their tasks and you are back to 3 party members again.

Deist
Find Gordon in the main room of the building and he will direct you to take a ship at Paloom. Once you enter the town, there will be a lady standing there who offers to bring you to Deist. Take the offer no matter and you will find out that she is actually a pirate and her crew attacks you. Defeat them and she will join your party and you can control her ship to anywhere in the worldmap.

Head South East to Deist (east of snow area). Enter Deist Castle and follow the little child who will lead you to his mum. His mum will tell you that they are the remaining Dragoons clan and the only Wyvern that lives is in the room behind her but it is poisoned. She tells you to find a pendant from the Deist Caves that will allow you to speak to the Wyvern. Wander around the castle to gather all the treasures here before heading to the cave.

In the first level of the cave, head to the top right, you will find a stairs that will lead you to a carcass of a Wyvern, where you will find the pendant. Bring this pendant back to the only Wyvern. Speak to him and he will give you the last remaining Wyvern Egg. Bring this down to the bottom most level where you will find the life stream. Throw the egg into the life stream.

Altair
Return to find Gordon and you will find out that Princess Hilda has been acting weirdly lately. He asks if you could speak to her. She is in the bottom right room within the same house. Before you enter the room, unequip Leylia's equipment if you do not want to lose her equipment as she will leave you after this section. Speak to Princess Hilda and she will try to seduce Firion. But she turns out to be a monster serpent. The rest of your party will enter the room and defeat it to find out that Princess Hilda has been captured by the Emperor. He is offering her as the prize at the Arena's fight. Leylia will leave you and Gordon will take her place. Head west from Altair to find the Arena in the right side of the Desert.

Arena
Enter the Arena and you will find yourself trapped by the Emperor. He will trap you in the arena area to fight a monster. After you defeat it, you will head towards the Emperor but he will disappear and set his soldiers upon you to capture you. You get thrown into jail but someone will come to release you for helping him escape from the mines. Search all the rooms within the area to gather all the treasure boxes and go upstairs from the top right corner.

Unequip Gordon before you enter the room containing Princess Hilda as he will leave with Princess Hilda after you open the door. Leave the Arena and head back to Altair to find everyone gone.

Fynn
Everyone has moved to an encampment outside below Fynn to begin preparations for taking back Castle Fynn. Enter the encampment and speak to Princess Hilda and Prince Gordon. Enter Castle Fynn and collect all the treasures on your way up to the top floor. Defeat the monster at the top floor and the castle will be recaptured. Speak to Princess Hilda and Prince Gordon. They will tell you that Minwu has left for Town of Mages - Mysidia and has gone uncontactable for too long a period. They will send you to find him. At the same time, Princess Hilda will tell you about the White Mask and Dark Mask, one of which is hidden in the basement of Castle Fynn. Speak to Prince Gordon about the masks and he will tell you that Paul who resides in Fynn Town (bottom left corner) knows of how to enter the secret room. Paul will say that the entrance is to the far end of the audience room, to the right of the throne.