Literary critic Robert McCrum's selection of the 100 greatest novels written in English https://www.theguardian.com/books/2015/aug/17/the-100-best-novels-written-in-english-the-full-list

The bonus challenges are Guardian readers' votes for an alternative 15 books that McCrum didn't include https://www.theguardian.com/books/2015/sep/03/the-best-novels-in-english-readers-alternative-list 

There is no time limit for this challenge