“Fact and fiction weave in and out of novels like a shell game.” —R.B. Kitaj
Not just novels.
Fact: 
IMAGE- Anne Taormina on 'Mathieu Moonshine' and the 'super overarching symmetry group'
The mark preceding A8  in the above denotes the semidirect product.

Symbol from the box-style
I Ching  (Cullinane, 1/6/89).
This is Hexagram 55,
“Abundance [Fullness].”

The mathematical quote, from last evening’s Symmetry, is from Anne Taormina.
The I Ching  remark is not.
Another version of Abbondanza —
IMAGE- Taormina sunset from inabbondanza.com on June 22, 2009
Fiction:
Found in Translation and the giorno  June 22, 2009, here.