Crystal Caverns: Emerald Square

Kill RB Darnel and get a Blue Crystal

Guide by Agnosis, Alyla and Chelai from Abyss clan

Table of Contents

  1. Requirements
  2. Intro
  3. Entering Emerald Square
  4. Instance Walkthrough
  5. Raid Boss: Darnel
  6. Rewards
  7. Recordings
  8. Monster List

Requirements

  • 1 Contaminated Crystal from Dark Cloud Mansion
  • One player must have 3 Secret Keys from Race Events
  • Dagger with Detect Trap and Remove Trap skills
  • At least 10 Dark Potions from NPC in town
  • Stocked up on shots, ores, potions, elixirs, recovery scrolls, resurrection scrolls, symbols, holy cups, etc.
  • 90 minutes of your undivided attention.

Intro

Emerald Square is one of the 3 instances from Crystal Caverns.
To complete the instance it's required that one party member has three Secret Keys. These are not tradable.

The Contaminated Crystal will be consumed if you kill the instance Raid Boss. The Refresh Timer will begin when the Raid Boss dies. To reenter Crystal Caverns, repeat Dark Cloud Mansion and wait 24 hours.

Players who stay dead for more than 10 minutes or disconnect from the instance will be ported out. You can enter again and rejoin the party if they have not yet reached the Raid Boss room.

Farming instance monsters

If you only wish to farm the instance monsters, you can skip the Raid Boss.
To reset the instance: skip the Raid Boss and leave the instance with a Scroll of Escape or Party Return and wait 20 minutes for the timer to reset. You can then enter the Crystal Caverns again. Don't drown while you wait!

Entering Emerald Square

You can access the Crystal Caverns through the Oracle Guide beneath Parnassus. In order to enter, you need at least two players in your party, and everyone must have a Contaminated Crystal. Once you click Touch the Sphere, the 90-minute timer starts, and you're teleported to the Preparation Room (Marked as Red Triangle on the map).

In the Preparation Room, speak with the Oracle Guide and select Emerald Square and go through the left door.
You will arrive in a middle of a long corridor with doors on either end.
Clear the monsters on the left side in the Blue Coral Key Corridor until you get to Gatekeeper Lohan. Kill Lohan and get the Blue Coral Key. Use the key to open Sapphire Gate and start Emerald Square instance.

Entrance to Emerald Square

Emerald Square Walkthrough

Emerald Square Map There are multiple areas and rooms: Main Square with upper and lower parts, 1 Secret Room, 3 Secret Garden Rooms, and Darnel's Room. Monsters in Emerald Square are probably the easiest to kill from all Crystal Cavern instances. They are social, but spread around and few have any resists.

Blacksmith Lahm

You can find Blacksmith Lahm in the secret room. To open this room you will need a dagger with Detect Trap and Remove Trap skills learned.
Blacksmith Lahm can trade your seed of evil shards for Dynasty recipes or keys.

  1. Enter through the Sapphire Gate onto the upper part of the Main Square and clear it completely.
  2. Move down to the lower part and likewise clear it. When you kill a Plaza Caiman and their minions, Rodo Knight and Fire Opal Reef Golems will spawn slightly after their bodies disappear.
  3. Once the lower part and upper part are cleared, Dolph and his minions will spawn on the upper part and Terod and his minions on the lower part. Kill them both.
  4. A trap will start shouting. It is located at the entrance to the Secret Room on the upper part of the Main Square. Detect it and defuse it, enter, and clear all monsters inside.
  5. Now you will have to open and clear the 3 Secret Garden Rooms.
    • To open the gate, the character with a Secret Key must move towards the door. Once the door opens that character must not enter or move at all. If he enters the door will close behind him and he can’t open it from the inside. If he moves and the door closes again, he will consume another Secret Key to reopen.
    • You need 3 Secret Keys in total for the whole instance, so don’t screw up as the Race Event to obtain these keys is highly contested and hard to obtain. Just hope that the dagger doesn't get a critical error/disconnected.

    • The rest of the party enters and clears the room while the key holder waits for them to come out.
    • Begin with the Secret Garden Room at the top, then move on to the one between upper and lower levels, and then finally finish with the room at the bottom. You must do these in this sequence.
  6. After you have cleared all Secret Garden Rooms the gate to Darnel’s Room opens.

If at any point a player disconnects, they can easily reenter and link up with their party.

Darnel

Darnel is one of three raid bosses you will have to kill to be able to enter Baylor’s Lair. Your Contaminated Crystal will become a Blue Crystal when Darnel dies, and you will receive a Black or White Seed of Evil – Shard.

  • Wait for the whole party to enter before you start the Raid Boss. As soon as you start hitting Darnel, the door will close. The fight is quite straightforward, she doesn't deal a lot of damage.
  • The room contains multiple traps that are not worth defusing because they respawn very quickly, so it is better to just tolerate them. There is no safe corner or spot to stand. However the less you move the less you trigger.
  • Darnel debuffs and paralyzes a lot, but there's really nothing you can do about it. Embrace the pain.
  • An Oracle Guide will appear where Darnel died. If every party member has 1 Red Crystal, 1 Clear Crystal and 1 Blue Crystal you can challenge Baylor.

Any party member who disconnects or stays dead for more than 10 minutes gets ported out and cannot reach Darnel's Room nor can they enter Baylor's Lair if the leader chooses that option. A contaminated crystal will not be consumed when Darnel dies and they will not receive a Blue Crystal.

Rewards

  •  Blue Crystal
  •  White/Black Seed of Evil - Shard

Recordings

Click on the links below to watch our Emerald Square run on L2 Reborn OBT.
Please note: Darnel raid boss fight - fail because someone hit RB before party entered

Monster List

Monster (Level) Type Active Passive Resists Weakness
Plaza Caiman (82)
Plaza Gaviel (82)
Plaza Helm (82)
Crystalline Unicorn (82)
Emerald Alligar (82)
Emerald Boar (82)
Tourmaline (82)
Fire Opal (82)
Rodo Knight (82)
Reef Golem (82)
Reef Golem (82)
Reef Golem (82)
Dolph (82)
Emerald Boar (82)
Dolph’s Minion (82)
Terod (82)
Terod’s Minion (82)
Weylin (82)
Weylin’s Minion (82)
Guardian of the Square (82)
Spinel (82)
Darnel’s Guardian (82)
Guardian of the Emerald (82)
Darnel (81)