COSine 2027 – January 22-24 at Great Wolf Lodge

Join us for a weekend of science fiction, fantasy, and horror!

If you are a dealer, artist or participant, please click here, and then contact the appropriate person/group.

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NOTE: By registering for COSine and providing us with an email, you are opting in to be contacted with information pertinent to COSine and First Friday Fandom. We will never sell your email or personal information.

Note: We have removed PayPal as an option for paying because of changes to their privacy policy. Unless you explicitly opt out (or live in a state where you have to opt in) they will share personal information with vendors. We do not approve! If you absolutely have to pay with PayPal, please contact us and we’ll figure out a way.