ATH 2021:

Armchair Treasure Hunt 2021

Title: The Twelve Days of Cold Christmas
Setter: The Urban Marsupial Orchestra
Themes: The Twelve Days of Christmas, Prime Meridians, Cold
Please click on the picture to download.

ATH 2021 poster

RIP James Medhurst

1975-2021

An Advent Calendar was also used to release a new mini-puzzle every day from 1 to 10 December 2021, plus an additional hint on 24 December 2021. The Advent Calendar can be accessed here.