The Cave of Trials is the hardest farm zone. Its monsters are all level 80, but they have far more HP than in the other zones and give far more experience, so come with a strong party. Every monster here is aggressive.
The teleport lands at the west end of the cave, and the cave runs east from there: Cave Tarantulas right by the entrance, then the Rakuls and Lienriks, the cave soldiers in the middle, and at the far east end Grave Robber Kim and the Preachers of Doom, among crowds of Soldiers, Knights and Berserkers.
Getting there
Talk to the Global Gatekeeper in any town, press Teleport to Farm Areas and choose Cave of Trials (3,500,000 Adena). It opens in Chronicle 6. Gatekeeper Ziggurat in Giran lists it too.
Monsters
All level 80 and aggressive.
| Monster | Where | Crystal per drop |
|---|---|---|
| Cave Tarantula | By the entrance | Green Crystal 1 - 7 |
| Cave Rakul | Near the entrance | Blue Crystal 1 - 10 |
| Cave Lienrik, Cave Lienrik Lad | Near the entrance | Blue Crystal 1 - 7 |
| Cave Soldier, Cave Knight, Cave Berserker | Everywhere past the Tarantulas | Cyan Crystal 1 - 7 |
| Unpleasant Humming | The middle | Cyan Crystal 1 - 14 |
| Cave Archer | The middle and the east | Cyan Crystal 1 - 14 |
| Cave Horror | The middle and the east | Cyan Crystal 1 - 7 |
| Preacher of Doom | The far east end | Cyan Crystal 1 - 14 |
| Grave Robber Kim | The far east end | Pink Crystal 1 - 23 |
Grave Robber Kim is the toughest monster here, with the most HP, and gives the most experience. The Unpleasant Hummings have only a sixth of the HP of the Soldiers around them for the same experience.
Drops
Chances are per kill (drop) or per successful Sweep (spoil).
| Item | Drop | Spoil | From |
|---|---|---|---|
 Adena | 25% | - | Every monster. Grave Robber Kim gives the most (30,000 - 45,000). |
 Green Crystal | 25% | 100% | Cave Tarantula. |
 Blue Crystal | 25% | 100% | Cave Rakul, Cave Lienrik, Cave Lienrik Lad. |
 Cyan Crystal | 25% | 100% | Cave Soldier, Knight, Berserker, Horror, Archer, Unpleasant Humming, Preacher of Doom. |
 Pink Crystal | 25% | 100% | Grave Robber Kim. |
 Doom Incense | - | 15% | Spoil only: Preacher of Doom. Treasure Chests drop it at 3%. |
 Infinity Dust | 1.52% | 3.04% | Grave Robber Kim only. |
 Blue Seal Stone | 12.5% | 100% | Every monster. |
 Green Seal Stone | 6.25% | 50% | Every monster. |
 Red Seal Stone | 5% | - | Every monster. |
The Seal Stone stacks here are the biggest of any farm zone: 7,200 - 14,000 Blue Seal Stones from most monsters, up to about 20,000 from Rakuls and Cave Horrors, 14,000 - 28,000 from a Preacher of Doom and 20,000 - 40,000 from Grave Robber Kim. A Talisman of Abundance adds to them. The Dusk Priestess (Seal Stones Trader) in the towns turns them into Ancient Adena (I want to contribute the Seal Stones.): 3 per Blue, 5 per Green and 10 per Red Seal Stone.
Treasure Chests
A box and a mimic wait in each chest spot among the monsters and come back 9 minutes after they are gone. Only Unlock (Treasure Hunter, Plains Walker, Abyss Walker and their third classes) opens a box: a failed Unlock or a normal hit makes it explode and vanish. A mimic is a monster, so kill it. Boxes and mimics drop the same loot, and every line is rolled on its own.
| Item | Chance | Amount |
|---|---|---|
| Adena | 100% | 875,000 - 1,785,000 |
| Cyan Crystal | 100% | 5 - 12 |
| Pink Crystal | 100% | 1 - 3 |
| Blue Crystal | 85% | 1 - 2 |
| Green Crystal | 65% | 1 - 2 |
| Doom Incense | 3% | 1 |
| Infinity Dust | 1% | 1 (from Chronicle 8) |
What the loot is for
| Material | Used for |
|---|---|
| Blue Crystal | The Royal Right Tattoo, the Greater and Royal Demon Tattoos, and the Infinity hero weapons. |
| Green Crystal | The same tattoos and the Infinity hero weapons. |
| Cyan Crystal | The same tattoos and the Infinity hero weapons. |
| Pink Crystal | The Infinity hero weapons. |
| Doom Incense | 5 per Mammon Fabric, which the town Blacksmiths craft (Make Item). |
Only Heroes holding a Royal Certification can craft the Infinity weapons.