The Artifact Spirit of the Innate Divine Treasure, the Immortal Vanquishing Sword, manifested an arm and pointed to the part where its tip was missing, saying, "Don't ask me questions that require guessing. I'm missing part of my body, so my mind isn't very sharp.
Just say what you need to. Why did that Immortal put my sword tip in the Burial Sea of Immortals?"
"Oh, sorry, Little Sword, I forgot that after losing your tip, your mind isn't very sharp," the Artifact Spirit of the Innate Divine Treasure, the Five Elements Flag, said apologetically. Then, without beating around the bush, it continued, "I suspect that Immortal sealed your sword tip in the Burial Sea of Immortals to use it as a locator.
The idea is to draw the Burial Sea of Immortals to our Cultivation World when it passes by, not too far from here, using your sword tip as a coordinate.