Avesta as "Fragments Tahmuras"; and the "Hadokht Nask" "volume of the scriptures" with two fragments of eschatological significance. Only texts preserved in the Avestan language count as scripture and are part of the Avesta. Several other secondary works are nonetheless crucial to Zoroastrian theology and scholarship. The most notable among the Middle Persian texts are the "Dēnkard" ("Acts of Religion"), dating from the ninth century; the "Bundahishn" ("Primordial Creation"), finished in the eleventh or twelfth century, but containing older material; the "Mainog-i-Khirad" ("Spirit of Wisdom"), a religious conference on questions of faith; and the "Book of Arda Viraf", which is especially
The Book of Dave is discovered centuries later and used as the sacred text for a dogmatic, cruel, and misogynistic religion that takes hold in the remnants of southern England and London following catastrophic flooding. The future portions of the novel are set from 523 AD (After Dave). The book alternates between Dave's original experience and that of the future devotees of the religion inspired by his writings. Much of the dialogue in "The Book of Dave" is written in "Mokni", an invented dialect of English derived from Cockney, taxi-drivers' and Dave's own usage, text-messaging, and vocabulary peculiar to the late 20th and early