It's fate, Henry. Don't waste time trying to find a way around it. It's your fate. Everyone in this town is in danger again, but this time, they're in danger of you. You'll kill them all, and the more you try to get out of it the closer you get. It's over, Henry, the battle's over. And you lose.
Henry woke up, terrified. He'd been having the same dream for days now, a woman's voice telling him he would kill his entire family, the whole town even. Such a strange voice, thinking it could tell the future. Normally, stuff involving the future was something he would go to Grandpa Rumple about, but Belle had kicked him out of town. Maybe Belle had a book about it? He decided to go see her. He got dressed and went to the library.
"Belle?", he asked, walking in.
She looked up. "Henry! Hi!" She frowned. "You look upset about something."
So do you, Henry thought, though he knew what she was upset about. "Yeah, um, I was just wondering if you had any books on seeing the future?"
Belle nearly dropped the book she was holding. "Why?"
"Just... wondering."
"Henry..."
He sighed. "Fine. I had a dream about a voice telling me about... something that was going to happen. I want to know what that means."
Belle frowned. "Who's voice?"
"A woman's", Henry said. "Not..." He left the thought hanging in the air.
"But... the only other people who could see the future were Seers, and they're all dead."
"Weird..."
"Well, I have a book I can lend you, if you want."
"Thanks, Belle", He said. She handed him the books and he walked out.
"Henry?", Emma asked when he got back to the apartment. "Where were you?"
"Library", he replied nonchalantly.
"Why...?"
"To get some books."
"Ok..."
He went upstairs. He loved his family, he really did. And if he couldn't figure this thing out, if this future was his fate, he could avoid it. He could avoid killing them. All he had to do was cross the town line, and he would never be able to return.