If you already have the Khedirak Rubik's Cube, you don't have to go to the Temple of Death. You can skip this step directly.

Go to a remote oasis to find a wormhole on the third floor. Kill the biggest bug on the third floor and take the staff.

Go directly to the viper temple in Snake Canyon and get the viper amulet inside.

Scene 2

Dry Highland (where the Temple of Death is located-Nadira Keke Square)-Far Oasis (where the wormhole is located-Nadira Kezhang)-Forgotten City (a good place for level 85 scene equipment-ancient passage)-Snake Canyon (where the Temple of Viper is located-Nahan Viper)-Go back and talk to Zhuognan. Go talk to deckard cain. Go talk to King Jehain. Go to the hole behind Jayne. Go straight ahead. Found a red entrance. Go inside. This is a mysterious refuge. Kill the mage BOSS, click on the book next to it. It will open a red entrance. Go inside. This is the location of Tara Xia's tomb. Open the task prompt and you will know the symbol corresponding to the real grave. Find it.