Why is the title of Doris Lessing's "No Witchcraft for Sale" ironic? There is no witchcraft that will allow Teddy to be adequately healed. There is witchcraft involved in Gideon's responses to the scientists. There is no witchcraft in Gideon's remedy, only wisdom from his father. There is witchcraft involved in the act of saving Teddy's eyesight and health.

The title "No Witchcraft for Sale" is ironic because, while there is witchcraft involved in Teddy's healing, it's not a tangible thing that can be bought or sold. While it's vital, it's not for sale because it's more knowledge than physical items. So, the title seems to imply that because the witchcraft if not for sale, it's not offered or available, but that's not the case.