My name is the hidden task "The Treasure of the Great Thief" in MT4. This task can be triggered by the chef NPC near the daily reputation. After that, the player needs to find the lost treasure box. After finding 3 treasure boxes, you can obtain the phantom beast cultivation materials.
Task reward
30 Awakening Potions. There are many guides on the Internet, but they are not very detailed. I wrote down the coordinates through my own search and shared them with everyone.
The coordinates of the first treasure chest are 761.452, on top of another tall tower.
The second treasure chest is at coordinate 396.1466, at the entrance to the Thorn Island instance.
The coordinates of the third treasure chest are 974.753.