Quest names from assest/db/quest_db.conf. These appear in your quest window when the skill quest is active.

Stone Fling

Quest ID 9271

Thief Skill Quest - Stone Fling

Find Stone

Quest ID 9272

Thief Skill Quest - Find Stone

Sand Attack

Quest ID 9273

Thief Skill Quest - Sand Attack

Back Slide

Quest ID 9274

Thief Skill Quest - Back Slide

Quest ID 9271 — Thief Skill Quest - Stone Fling

1. Travel to the Thief Guild in Morroc Pyramid B1 and talk to Alcouskou.
2. Choose Stone Fling from his menu to hear the training requirements.
3. Return with 2 Garlet and 2 Scell, then choose Stone Fling again to learn the skill.

Items required (consumed):

Garlet x 2

Scell x 2

Quest ID 9272 — Thief Skill Quest - Find Stone

1. Talk to Alcouskou and choose Find Stone from his menu.
2. Gather 1 Bear's Footskin, 1 Zargon, and 5 Spawn.
3. Return to Alcouskou, choose Find Stone again, and complete the training to learn the skill.

Items required (consumed):

Bear's Footskin x 1

Zargon x 1

Spawn x 5

Quest ID 9273 — Thief Skill Quest - Sand Attack

Step 1 — Turn in Fine Grit

NPC: Alcouskou — moc_prydb1 (154, 128)

1. Talk to Alcouskou and choose Sand Attack.
2. Bring 5 Fine Grit. Alcouskou keeps the grit and sends you to RuRumuni in west Payon for a leather sand pouch.

Fine Grit x 5

Step 2 — Craft the Leather Bag of Infinity

NPC: RuRumuni — payon (91, 77)

1. Find RuRumuni in west Payon (Bag Seller NPC).
2. Hand over 1 Earthworm Peeling, 1 Cobweb, and 1 Cactus Needle.
3. RuRumuni crafts a Leather Bag of Infinity for you to bring back to Alcouskou.

Earthworm Peeling x 1

Cobweb x 1

Cactus Needle x 1

Reward item:

Leather Bag of Infinity x 1

Step 3 — Learn Sand Attack

NPC: Alcouskou — moc_prydb1 (154, 128)

1. Return to Alcouskou with the Leather Bag of Infinity.
2. Choose Sand Attack again to finish training and learn the skill.

Leather Bag of Infinity x 1

Quest ID 9274 — Thief Skill Quest - Back Slide

1. Talk to Alcouskou and choose Back Slide from his menu.
2. Bring 20 Grasshopper's Leg, then choose Back Slide again to complete the training.

Items required (consumed):

Grasshopper's Leg x 20

Skills are listed above in job level order. You can learn them in any order once you meet each requirement, but Sand Attack requires a side trip to Payon between the Fine Grit turn-in and the final lesson.