http://readms.com/r/one_piece/761/2544/1

Theory I found online:

Child law gonna die, but corazon gets attached to law. Corazon has ope ope fruit and uses special operation to save him, dies, this process also transfers the ope ope fruit powers to child law. Dofla trains law so he uses ope powers for him and something is revealed that makes law and dofla sworn enemies, probably something that has to do with corazon and the treasure.

Dofla revealed to law that the ope fruit can transfer personalities and the mariejois treasure, CORAZON probably did this, since law didnt know and he has the fruit.

Edit: Ah damnit this is actually chapter 761.