As seen at Topsy Turvy Books:
"A Geoffrey Trease Society is now being launched by a cousin of Geoffrey's, Heather Trease. Initially, the subscription is £5 within the UK, and £7.50 overseas and the aim is to produce two journals a year of interest to all enthusiasts of Geoffrey's books. Later there may be some scope for meetings or visits, and if the membership is large enough, it may be feasible to increase the frequency of the magazine. If anyone would like to contribute articles or items for the magazine, please let me know.
If you are interested in joining the society,
please e-mail me at: email@example.com
and I will let you have the details.