Icon Hotel, Luton. October 2012.
(I just remembered why I never use fanmail!) If Carvel modified Janus in a way that mixed race people were immune to it then that might appeal to someone who has expressed an interest in genetic engineering. Only genetically diverse people would survive and as a holocaust survivor he would be giving the finger to Nazi racial ideology by creating a world where no-one was racially "pure". If Jessica is able to have Ian's child then that would also be an interesting development for Janus.