"We had to summon the other two fates to stop their sister, but the doing so unleashed monsters. Also, the OTO had been breaking the dimensions and we had to close those rifts, but the only ones with the power to do that were the Fates. And they asked what we were willing to give up to save others. Well, those of us who entered their demesnes, anyway."

Harry nods, remembering.

"The coded messages were sent out by someone giving us clues as to how to summon the other two fates to stop their sister."