- Rupert Giles: “A book… It stole one of my books”
- Jenny Calendar: “Well at least someone in this school is reading.”
- — on the Du Lac Manuscript[src]
The Manuscript was said to contain a number of dark rituals and spells. However, it was written in archaic Latin, so nobody but Josephus du Lac's followers could read it. Spike required it to perform a ritual that would make Drusilla well again. He forced his minion Dalton to translate it but concluded that it required the du Lac cross to translate. The cross was buried in Du Lac's tomb; many vampires went to steal it, however Buffy Summers attempted to stop them, being in the end unsuccessful. The ritual required the sacrifice of Angel, because he was Drusilla's sire. Angel was saved by Buffy during the ritual. Even though it was said that Angel would have to be sacrificed in order for the ritual to work, he wasn't and the ritual worked to restore Drusilla's strength anyway.