James Frazer, The Golden Bough — Chapter 64:… (1922)
“ If we are right in interpreting the modern European fire-festivals as attempts to break the power of witchcraft by burning or banning the witches and warlocks, it seems to follow that we must explain the human sacrifices of the Celts in the same manner; that is, we must suppose that the men whom the Druids burnt in wicker-work images were condemned to death on the ground that they were witches or wizards, and that the mode of execution by fire was chosen because burning alive is deemed the surest mode of getting rid of these noxious and dangerous beings. ”
