PAX East 2011 video game convention scenes
Carli Velocci Photo for Boston.com
Ethan Gilsdorf is the author of "Fantasy Freaks and Gaming Geeks: An Epic Quest for Reality Among Role Players, Online Gamers, and Other Dwellers of Imaginary Realms," now in paperback. Follow his adventures at www.ethangilsdorf.com.
An attendee dressed up as a Little Sister from the "Bioshock" video game series, which is created by Boston-based Irrational Games. The newest addition to the game's series, "Bioshock Infinite," is set to be released next year.