Ghostly wail

At the qi sea banquet, Wu Ma Yang presents a dead small music clam shell, itself a rank seven sound path immortal material, but sells the music stored inside rather than the shell. Opening a slit releases a weak crying sound with music rhythm that can restrain investigators; mortals fall prey, and Gu Immortals can be lightly injured or die in a severe case. After a short emission he seals it again. The stored music is named rank seven immortal material ghostly wail. He offers to exchange it for any rank seven dark path immortal material of equal value, preferring black hole wood or dark thread algae. The haul is linked to resources from the emerging Earth Trenches. ^{ch. 1885}