Level 16

Fort Thousand Wood
System Message upon reaching level 16
1. Report to the Old Hunter (498, 970)
-Reward (Gold: 1800 Exp: 3000 SP: 700 Rep: 2)

Apothecary's Revenge
1. Speak to Apothecary Hui (498, 964)
-Kill 20 Wasteland Tarantulax (Located North of the Timberfield)
2. Report to Apothecary Hui (498, 964)
-Celestone of Heaven/Human/Earth or Celestone Fragment: 1(Random)
-Reward (Gold: 2500 Exp: 4100 SP: 950 Rep: 2)

Tarantulax Lair
1. Speak to the Old Hunter (498, 970)
2. Investigate the Tarantulax Lair (Around 478, 927)
Just get near and it will auto-continue the quest
3. Report to the Old Hunter (498, 970)
-Celestone of Heaven/Human/Earth or Celestone Fragment: 1(Random)
-Reward (Gold: 1800 Exp: 3000 SP: 700 Rep: 2)

The Stubborn Ones
1. Speak to Guard Lu Shi (433, 886)
No matter which you pick whether Blacksmith or Craftsman the end result is the same, just different mobs to kill.
-Option 1: Blacksmith
-Option 2: Craftsman
Ence's personal tip: If you're a mage, go get Hailstorm and pick the Craftsman side. With that and Gush maxed you can 3-shot the Boas. The Magmites take 4-5 shots.
The Lightning Stings are a uncommon drop

For the Blacksmith
1. Speak to Blacksmith Ho Li (431, 874)
-Collect 5 Lightning Sting (Dropped from Crystaline Magmite, located around 490, 990)
2. Report to Blacksmith Ho Li (431, 874)
-Celestone of Heaven/Human/Earth or Celestone Fragment: 1(Random)
-Reward (Gold: 2150 Exp: 3550 SP: 880 Rep: 2)

For the Craftsman
1. Speak to Craftsman Yueh (426, 877)
-Collect 5 Lightning Sting (Dropped from Krimson Boa, located near the Timberfield)
2. Report to Craftsman Yueh (426, 877)
-Celestone of Heaven/Human/Earth or Celestone Fragment: 1(Random)
-Reward (Gold: 2150 Exp: 3550 SP: 880 Rep: 2)

Level 17

Flute of the Old Days
1. Speak to the Elder in Etherblade (433, 887)
2. Speak to the Old Village Head (496, 867)
3. Investigate around 582, 896. The quest will auto-trigger.
4. Speak to the Old Village Head (496, 867)
5. Investigate around the bridge over the Everflow River (589, 883)
-Obtain 1 Old Bamboo Flute
6. Investigate around the Flush Bark near the cabin (600, 885)
7. Report to the Old Village Head (496, 867)
-Choice 1: Common Garnet Shard (Patk/PDef)
-Choice 2: Common Sapphire Shard (Matk/MDef)
-Choice 3: Common Citrine Shard (HP)
-Choice 4: Common Turquoise Shard (MP)
-Reward (Gold: 5400 Exp: 9000 SP: 2000 Rep: 3)
8. Continue on to quest "Perfect Wish"

Perfect Wish
Continued on from quest "Flute of the Old Days"
1. Speak to the Old Village Head (496, 867)
-Take back Ya Ling's Soul (Drops from Withered Dryad , located around 617, 897)
First Boss Battle. [Level 15] Mixed attack BOSS
2. Speak to the Old Village Head (496, 867)
3. Speak to Master Tsang (560, 997)
-Obtain 1 Revival Herb
-Collect 10 Evergreen Fruit (Drops from Demonic Sporopod, located near Master Tsang, also located around the Timberfield)
4. Speak to Master Tsang (560, 997)
-Obtain 1 Rejuviante Orb
5. Report to the Old Village Head (496, 867)
-Celestone of Heaven/Human/Earth or Celestone Fragment: 1(Random)
-Reward (Gold: 4050 Exp: 6750 SP: 1500 Rep: 2)

Recluse's Mirror
1. Speak to the Old Hunter (498, 970)
2. Report to Mo the Recluse (479, 948)
3. Continue on to quest "Ostial Centipex"

Ostial Centipex
Continued on from quest "Recluse's Mirror"
-Collect 1 Recluse's Mirror (Drops rom Ostial Centipex, located north of the Timberfield and south of the Volcanic Purgatory)
1. Report to Mo the Recluse (479, 948)
-Celestone of Heaven/Human/Earth or Celestone Fragment: 1(Random)
-Reward (Gold: 1000 Exp: 1640 SP: 400 Rep: 2)

Level 18

The Ferry
1. Speak to Apothecary Sung (432, 876)
2. Speak to the Old Boatman (414, 808)
-Collect 1 Log (Farmabale Material, some locations: 442, 837;458,832; 495,833; 481,826; 467,843; 476,871; 493,833)
-Collet 1 Pig Iron (Farmable Material, some locations: 469,835;429 825;487,882;484,824;489,838)
3. Speak to Blacksmith Ho Li (432, 874)
-Obtain 1 Brand-new Paddle
4. Report to the Old Boatman (414, 808)
-Celestone of Heaven/Human/Earth or Celestone Fragment: 1(Random)
-Reward (Gold: 3000 Exp: 5000 SP: 1150 Rep: 2)

Hsin Telei's List
1. Speak to the Elder of Etherblade (433, 887)
2. Speak to Chang the Hunter (459, 838)
3. Speak to Old Hunter (498, 970)
-Collect 3 Frozen Wolfmaster Fur (Drops from Frozen Wolfmaster, located on the west side of Thousand Wood Ridge)
4. Speak to Old Hunter (498, 970)
-Obtain 1 Wolven Fur Coat
5. Speak to the Elder of Etherblade (433, 887)
-Celestone of Heaven/Human/Earth or Celestone Fragment: 1(Random)
-Reward (Gold: 6000 Exp: 10000 SP: 223 Rep: 2)

For the Recluse
1. Speak to Mo the Recluse (479, 949)
-Collect 10 Centipede Venom (Drops from Ostial Centipex Lord, located on the south and north ends of Thousand Wood Ridge)
2. Report to Apothecary Sung (432, 876)
-Celestone of Heaven/Human/Earth or Celestone Fragment: 1(Random)
-Reward (Gold: 2700 Exp: 4460 SP: 1000 Rep: 2)

Level 19

Cultivation Quest
Spiritual Cultivation Guide-Spiritual Progress
System Message Recieved upon reaching level 19
1. Speak to Taoist Master (429, 890)
-Collect 1 Celestial Sprite (Drops from Frozen Wolfkins, found on west, south and north side of Volcanic Purgatory)
The once the quest item is collected, it will auto-move on to the next portion of the quest which is to go after the other Celestial Sprite. Keep a close eye on your quest details.
-Collect 1 Celestial Sprite (Farmable, some locations: 544, 901; 574, 905)
3. Report to Taoist Master (429, 890)
-Choice 1: Elite Rending Blade Hierogram
-Choice 2: Elite Enchanted Heirogram
New Teleport Point: Archosaur
-Celestone of Heaven/Human/Earth: 1 (Random) + Resurrection Scroll: 1
-Reward (SP: 8000 Rep: 20)
Cultivation status changed to Aware of Principle
4. Continue to Lvl 21 quest "General's Expectation"

Preparations
1. Speak to the Old Hunter (498, 970)
-Kill 30 Araneid Hexxers (Located at the north, west and south end of Thousand Wood Ridge)
2. Speak to the Old Hunter (498, 970)
-Kill 30 Ant Soldiers (Located at the west side of Thousand Wood Ridge)
3. Speak to the Old Hunter (498, 970)
-Kill 30 Frozen Wolfmaster (Located at the west side of Thousand Wood Ridge)
4. Report to the Old Hunter (498, 970)
-Celestone of Heaven/Human/Earth or Celestone Fragment: 1(Random)
-Reward (Gold: 8400 Exp: 14000 SP: 3150 Rep: 2)

Level 19 Challenge Quest
Gate to the Dark Lands
Call of Duty

Requirements:
Cultivation: Aware of Principle
Dungeon Quest: Level 20+ monsters + Boss (Lvl 23)
Average Time to completion: 1-4 hours (Level 20 Party)

1. Speak to Elder (433, 887)
1. Kill 8 Molten Chrysalis (Inside Dungeon)
2. Kill 8 Molten Chilpod (Inside Dungeon)
2. Kill Thromh the Mighty (Boss)
[Level 23] Physical Attack
Do it in this order (Quest mobs first, boss second) or your quest will fail.

2. Report to Elder (433, 887)
-Choice 1: Trial Wand*
-Choice 2: Trial Trial Scythe
-Celestone Fragment: 1
-Reward (Gold: 190 Exp: 4606 SP: 2133 Rep: 12)

Duty Calls: Xenobeast
1. Talk to Elder (433, 887)
-Recieve Call of Duty: Xenobeast

Use this on the stone in the entrance hall of FB 19 or by the boss for extra exp to yourself and your squad members.

Source