It is unclear when he will be reunited with his mother, Lisa Harter, and her husband.

CNN: Missing boy found after 19 years

"I think they are as amicable as possible with each other, " Harter said.

CNN: Nerds and jocks getting along?

Kris Harter, a chemist and DragonCon attendee, says it's not always easy for the two groups to get along, but there's enough room for everyone.

CNN: Nerds and jocks getting along?

Because it's so massive, DragonCon attendees need to prepare, Harter said.

CNN: Nerds and jocks getting along?

Harter suggests wearing a T-shirt with a nerdy quote on it (like one from "The Big Bang Theory" that says "Bazinga, " or "See DOS run") or a costume.

CNN: Nerds and jocks getting along?