Also known as "FI" or "LW" this dungeon is difficult for players <150 however the drops can make it worth running. It is a relatively short dungeon and a party of 2-5 people is recommended depending on how strong the party members are.
This dungeon is unique in the game as it has 2 different mutually exclusive questlines to finish the dungeon. The first, and easier method is killing Captain Trugust. The second method, which includes the difficult 4th form of Kias Rodon, is to kill Queen Calamity. Once you start one questline you cannot do the other.
Some of the better items that can drop in this dungeon include:
This is the first boss, you can combo him until half of his HP then you can go bm2+short buffs and finish him off.
Kill the red fish and Crwadawdwaolphy.
TIP: You can lure both together to save some time.
Same technique as the first boss.
Kill these mobs to spawn the first Syarsor. He will appear further down the road.
Kill the Syarsor.
Then click on Arhen.
Get everyone in the fire pit room then bm2 and click on fire pit.
Then kill Syarsor.
After you killed Syarsor you go on and choose one of the different NPCs (Captain / Queen) to spawn the ArcShielder. The way shown here is the Captain quest line. Click on Arsiow in the NPCs section for Queen.
Lure Riot and ArcShielder together to kill them faster.
Then go up stairs and kill the boss Syarsor with the Fire Spirit that hits you quite a lot if you don't stun it.
TIP: One bm2 until Syarsor has just half HP left and the fire spirit will spawn, kill it as fast as possible and he will go Aod for a min. When you can deal damage on him again go bm again and use your short buffs to finish him.
After click on your chosen NPC again, then again on Arhen. Then go to ArcShielders place where the door was closed before.Go on and pass the gate (which is gone now) where Arcshielder used to be.
Kill the Morsus on the plank or you won't be able to get on the ship
When you are on the ship kill the 1 Curdy and 3 more will spawn, kill them and Conna will spawn.
After killing Conna, 1st Captain Trugust should spawn. Kill him. Kill the 2nd Captain Trugust on top of the stairs.
TIP: You can easily combo him if your bm runs out.
Kill the 3rd form of Captain Trugust on top of the other stairs.
TIP: Don't debuff him or he will start to debuff you like hell, don't wait too long to attack him again after one bm2+aura because he can respawn with full hp if you take too much time and after that he can go AoD for a few mins.
Use the warp gate on the ship to get at the beginning of the dungeon to finish.
For the other ending you need to talk to the NPC up the mountain instead of the Captain NPC.
ON THE OTHER HAND, if you had chosen Queen Calamity, then you would not have come onto
the ship at all, instead you continue on the path that takes you onto the ship. This path will lead to Kiias Rodon and you will have to kill him. Soon you will encounter the final form of Kiias Rodon and kill him (you need a lot of dmg). Behind him a wall will open and you will have to kill Queen Calamity. The technique is to kill it's legs to lower it's attack and def. If the queen goes aod or shadowshield or epic regen mode, just kill Vital of Queen or Fury of Queen and the buff should come down.
Congratulations you have successfully completed Forbidden Island