Your wailing stone au is awesome! Do you have a basic premise posted anywhere?
In the Very First Post I sorta summarized the premise of the WORLD:(AU xover where Danny gets lost in time and ends up on homeworld, back before gems can artificially create shittons more of themselves, and they capture him and figure out how to use ectoplasm to seed new worlds and grow gems out of the crystals that grow naturally…)(ectoplasm gives stones ‘life’ and and powers) (So a ghostly wail could ‘corrupt’ the ectoplasm within) (While breaking the gem would just break up their ‘self’ into multiple parts, the wail would tear the ‘life’ inside.)
Or: Gems are kinda-sorta-ghosts and Danny ain’t in a good place
The premise of the STORY is kinda… a slow and rough process of healing and learning to trust again? Also, lots of guilt.
‘Cause the Gems destroyed worlds and Danny was kinda sidelined into participating in that.