Every year in mid-September, DoubleTree by Hilton Manchester Downtown turns into an epicenter of comic book and pop culture. Granite State Comicon, aka Granitecon, is New Hampshire's premier comic convention, featuring an astonishing guest lineup, amazing cosplay, and tons of family-friendly entertainment. The main attractions include artist alley, the expo hall, and the fan zone.
The ticketing runs on the event's official website mentioned in the External Resources below. If you don't want to miss anything, pay $125 for the VIP admission covering all three days of the festival. Other options include a weekend pass at $55, and a single-day pass at $20 or $25, depending on the day. Note that the prices are valid for online booking only, whereas you'll have to pay $5 extra when buying tickets at the door.
Check with the official website to stay tuned for the latest updates about New Hampshire's comic con. Also, take a look at the map of accommodations nearby if you're willing to book your stay somewhere close to the venue.