Want to attend?
COSine has a membership fee that includes all activities and games, Dealer's Room, Author's Reception & Signing, and our renowned Con Suite with food and drinks you can enjoy all weekend.
COSine is proud to feature Jo Walton as our Guest of Honor for 2017.
COSine 2017 will likely return to our usual venue, but we'll keep you posted!
Call for Volunteers!
Want to help out? We would love to have you! If you would like to lend a hand, contact the committee member in charge of any area you are interested in, or you can volunteer at the convention itself. You can come to meetings of First Friday Fandom to see how we organize the convention and share your opinions.