Cats X Spiders X Hunters

The previous Phantom Troupe's number Eight was killed by Silva Zoldyck.
What if Silva had actually failed to kill said member but everyone believes he succeeded.
Silva believes that she died from the injuries given and because no new news about her comes around after his assassination.
What if that member was also Chrollo's younger sister and the leader of her own group?
Ging saves her life before dumping her in Gon's.