The Eight Great Spells were what the Creator himself used to create the Disc itself. They were stored in the Octavo which was left behind by the Creator and kept in a basement beneath the Library of Unseen University, for the safety of the browsers, not the book. Rincewind the Wizzard however was challenged to a bet and read the Octavo and as he did so, the Eight Spell floated into his mind, which prevented him from learning any other spell. This also prevented him from dying. Rincewind says that he was "thrashed" after his accident with the Octavo.
The Eight SpellEdit
The Eight Spell had seven texts:
The rest cannot be produced here.