Rarity goes in search of rubies for a custom dress order with spike, when she finds an alien gem, that she just HAS to have. After taking it home, she finds she has been having immense sharp pains in her back, legs and other various parts of her body.
It's getting worse, Rarity is crying out in pain in her sleep, and Sweetie Bell worries for her health, and has all the right to after what is bound to happen to her poor sister.
This is the raw unedited version of the story, so there's bound to be a LOT of errors