21st-23rd August 2026
Cookham, UK and Online

Special Guests

And featuring…

The Ineffable Con runs conventions, online parties and rewatches for fans of Good Omens – check out our events list to see what’s coming up! All TIC events are held to raise money for Alzheimer’s Research UK, in memory of Sir Terry Pratchett, and are run entirely by volunteers in their free time.

In the course of running events we’ve developed a number of games and activities, which we’ve made available on this website. Feel free to repurpose anything we’ve made for other events or conventions.