Enemy list
Chest list
The Dreadnought is gone. Cid flies you back to Altair, and now the rebellion needs allies. 14 chests in Castle Deist.
Altair After the Dreadnought
Go to the Rebel Hideout and talk to the King in the right room. Then visit the throne room and speak with Gordon. Ask him about the rebellion's next move.
Gordon brings up the Dragoons. Learn this keyword and ask about it. He then mentions Wyverns, so learn this too. You'll need both for Castle Deist. Gordon stays behind after this conversation; make for Paloom to find passage to Deist.
Recruiting Leila
At Paloom's pub, a woman named Leila offers ship passage. She'll take you to Deist.
Leave Paloom and you'll see her ship docked at the harbor. Board it. The moment you step on deck, Leila springs a trap. She's a pirate captain, and her crew surrounds you.
After the fight, Leila's impressed. She apologizes for the deception and offers to join your party for real. Accept her; she's a solid fourth member with decent agility. Give her a better weapon from your inventory first.
You now have access to her pirate ship. This lets you sail anywhere on the world map that's accessible by sea.
Sailing to Deist
Sail east from Paloom, then south through the passage between the landmasses. Continue south and then northeast. Deist is on the large island in the top right corner of the world map. Dock on the southern coast and head north on foot.
Castle Deist
Castle Deist isn't a dungeon. No random encounters and no bosses; just 14 treasure chests scattered across two floors. Enter the castle and talk to the boy near the entrance. Go straight up and speak with him again by the statues, then take the stairs up.
Only one chest up here. Chest 1 (Cottage) is in the top left corner. Grab it and walk right to the top right of the floor. Take the stairs down to 1F.
All 13 remaining chests are on this floor. From the stairs, head south to the dead end for Chest 2 (Unicorn Horn). Go back up and enter the door on your left; Chests 3-5 (Stop Tome, Stun Tome, Curse Tome) are inside.
Leave the room and go right. Continue up, then head left toward the top left door. Eight chests in one room: Chests 6-13 (Gold Needle, Eye Drops, Antidote, Sage's Wisdom, Cross, Saint's Spirit, Mallet, Wing Sword).
Head out and double back to 2F. Follow the path down toward the bottom left and take the stairs back to 1F. Chest 14 (Phoenix Down) is near the stairs. Once you've grabbed everything, go upstairs to find the boy and his mother in the center of the floor.
The Last Wyvern
The mother tells you her husband was a Dragoon. All the Dragoons are dead now; she's been guarding the last surviving Wyvern.
There's a Wyvern in the room behind her but it can't communicate with you unless you find the Pendant. It's in Deist Cavern, just north of the castle.