COSine 2025 – January 22-24 at The Embassy Suites

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.

Day passes available at the door!

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NOTE: By registering for COSine 2025 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.