Two people die in the throes of what appears to be demonic possession. Both of them were recent residents of Bedlam, the infamous insane asylum... where Arthur's father was committed.
A religion is a belief system with rituals. The missionary kopimistsamfundet is a religious group centered in Sweden who believe that copying and the sharing of information is the best and most beautiful that is. To have your information copied is a token of appreciation, that someone think you have done something good.