Prerequisites: Above level 100

NPCs:

Sugar Tang (Bird Island, 685 599)

Net Peddler (Bird Island, 189 183)

Yang Yun (Bird Island, 732 516)

Ye Sheng (Bird Island, 192 212)

Ruan Brother (Hut, 55 55)

Plum (Desert City, 472 578)

Ghoul Kong (Desert City, 85 313)

Walkthrough:

1. Visit Sugar Tang and hear the story about her family and Star Tower.

2. Seek out Yang Yun, to learn more about the Star Tower. Discover that the Tower Splinter was stolen by bandits.

3. Return to Sugar Tang, you are told that the second Tower Splinter is in a Hut at the center of Bird Island. To arrive at the Hut, you need to prepare the following:
a. Buy a Fishing Net at Net Peddler and right click it to use on Bird Island (170, 191).
b. Kill the Trout Elf and obtain a Fresh Fish. 3 Fresh Fish can be exchanged for an Iron Poise at Ye Sheng.
c. Use the Iron Poise at the 3 stone doors on Bird Island (208,216). Then you will find a way to the Hut.

4. When you meet Ruan Brother, he requests you bring Shawn`s Spear to him first. Kill Bloody Shawn (561, 797) and get his spear. Then you will obtain the second Tower Splinter from Ruan Brother.
Note: Bloody Shawn will respawn every 10 minutes, such as 1:00, 1:10, 1:20, 1:30, 1:40, 1:50, 2:00. When other monsters are around, he will be hidden till you kill the monster. 

5. Find Plum for more information about the third Tower Splinter. She suggests you investigate the Desert (166, 226). Kill the Caprice Leader and the Desert Condor there. The Tower Splinter disappears and you get a Handkerchief instead.

6. Show Yang Yun the Handkerchief, he will lead you to his Treasure House again, where Vicious Rats lie in wait for an ambush. After you kill them, there is a way ahead, leading to Dungeon. Also, you obtain a Weird Invocation.
Note: If you have failed at step 7, 8, 9, 10, for example, disconnected or drop the quest item, you have to start over from step 6. 

7. Meet Ghoul Kong at the entrance of Dungeon. He recognizes that Weird Invocation is a map of Dungeon and he is willing to teleport you there.

8. In Dungeon, you need to kill the Mausoleum Generals on each floor to obtain their weapons: Glitter Sword, Annatto Blade, Wasp Spear and Infernal Axe. The glowing spot will teleport you to the next floor.
When you have collected the 4 weapons, the ghost of Yang Feng will emerge. Kill him and get the 3 Tower Splinters.

9. There is a Cauldron in the Dungeon (3rd Floor, 48 37). It can smelt the 4 weapons into 4 clinkers: Fire Clinker, Earth Clinker, Metal Clinker and Wood Clinker. Then you can restore the Star Tower with the 3 Tower Splinters and 4 clinkers.

10. Bring the Star Tower to Sugar Tang. She is so happy and gives it to you as a reward. Do not forget to visit Yang Yun, a secret will be revealed soon...