Henry knows how to break the Curse
Prologue
If there was one thing Henry Mills prided himself on, it was his ability to merge the gifts his mothers had given him. He knew how to maintain the perfect poker face, one that completely hide what he really thought, thanks to his Regina and because of Emma he knew how to tell the perfect lie, one that upon hearing you'd immediately accept as the truth.
It was through combining those two important skills that allowed him to keep the biggest secret he had ever been told, one so big that it would have crushed anyone else.
No one had ever asked him exactly how he knew the book he cherished so dearly spoke the truth, of a land once full of Happy Ending's. Everyone had just assumed that it was simply his healthy imagination taking control wherever the book had ended, but for once the truth far outshone the cover people created in order to explain what they couldn't understand.
There used to be more to the book, it told of exactly how the Curse was to be broken, how everything would be returned to the Fairy Tale land, but after Henry read it, the important Final chapter vanished for the rest of Time, never to be read by another person.
The enormity of what he had learned almost crushed poor Henry. Knowing that he truly knew just how to save everyone, knowing how to break the Curse and bring back all the Happy Ending's and knowing that he was not the one meant for that almost broke all his dreams of being the Hero. It took some time, but he got over the heart break and accepted that his part was just as important because he had to set everything in motion; he was the only one that could get the whole Operation going.
At times he hated that he couldn't tell anyone just exactly how things were to end, not liking that he had to use his perfect poker face and tell the perfect lie in order to keep destiny going the way it was supposed to. Sometimes he wished he could speed the process up, drop hints here and there, but knew he couldn't without completely blowing his secret.
He knew he was supposed to only play the part of a very unhappy ten-year-old boy who didn't love his step mother and had no clue how to break the Curse. It was hard for him, because in reality he was a very happy ten-year-old boy who loved his step mother dearly and knew that the only way to break the Curse was through Love.