All prices are in U.S. dollars ($). Extra Guest autographs are not included in any ticket. Frequently Asked Questions. Oct.15-17, 2021 - Supernatural Official Convention, East Brunswick, NJ CONjuration is more than a Harry Potter convention; it is a 3-day magical fantasy convention for all things magical that emphasizes reading, writing, learning, gaming, crafting and so much more! Please note that tickets are delivered to you via e-mail in PDF format which you should print out and bring with you to convention registration. All tickets … Once Upon A Time - Wonderland . Sep. 10-12, 2021 - Supernatural Official Convention, Rosemont(Chicago area), IL