We apologize for the inconveniences this causes to those who do not have an account at AO3. Anyone may officially request an AO3 invitation at http://archiveofourown.org/invite_requests, but we understand the waiting list is long and invitations may not be received within the time frame to participate in Kaleidoscope.
Thus, participants who need an AO3 invite, please enter below an email address to which an AO3 invitation may be sent. We'll try our best to ensure that participants who make a request will receive an invitation for the challenge or offer alternatives to participating, e.g. Dark Agenda acting as a proxy for participants.