About a year ago, I wrote about TimeWave a festival of art, science and technology coming this May to London, with tendrils snaking out to New York and LA.

As part of the festival, we’re organising Quest for the Grail: An International Adventure Game, later this month: from noon to 5pm in London and right afterwards, noon to 5pm in Manhattan, New York.

The London teams will “hunt for objects in Clerkenwell hotspots…from the Order of St. John to Blackfriars Bridge to the International Magic Shop. You may be looking for a charm against the Plague, a tombstone or a silver goblet. Your team may be asked to invent something – the holiest of drinks.” The game continues with New York teams searching in “Manhattan hotspots…from Clinton Castle to the tombstones of Trinity Church to the Grand Lodge of the Masons. You may be looking for a marker of a headless ghost who haunts Wall Street, a symbol of George Washington or a troll in the East Village”, aided by London players and puppetmasters overseeing the games.

Unfortunately, I’m in sunny California recovering from my winter (and many years) of Planck work, but if you’re in either city and would like to play, you can join as an individual, a half-team of five, or a full team of ten players. There’s more information on the site, or you can contact the organisers directly at grail@timewavefestival.com.