Would it be possible to add the four “The Science of Discworld” books to this Quest so that there’s 45 books and qualifies for the 30 books read Sapphire badge? They are full length books and exactly four of them to fill the 41 to 45 total book gap.

They are called:

1. The Science of Discworld
2. The Globe
3. Darwin’s Watch
4. Judgement Day

Essentially they are a Discworld wizarding experiment that creates a microworld named Roundworld where science and logic rule rather than magic. They are written by Terry Pratchett with the help of a pair of co-writers for the non-magical stuffs.