Mafia 56. Avatar: Invasion.

Dude, maybe you can help, I'm about to explode. I'm thinking about "from 11 to 22." The only thing that seems to fit is the novel "11/22/63." I've already compared all the dates, including the publication date of the novel, Kennedy's birthdate, and Stephen King's birthdate, but nothing seems to match. If this clue isn't about a date, I'll be disappointed that I'm wasting my time. Maybe someone can find another link to this clue? Because I'm starting to doubt that 11/22/63 is correct...