In the Mortal Engines series by Philip Reeve, a major character in later instalments is Oenone Zero, a person whose first name I immediately noticed is an anagram of one one. At some point it's revealed that she had a brother called Eno, an anagram of one.
What's with all the numbers in these character names? Does it signify anything related to her character that her name is almost 110, or is it just a family trend that makes the character somehow memorable? (When writing this question, I didn't remember that there was a Greek mythological character called Oenone, but I still hold that the numbers thing in Mortal Engines can't be a coincidence, with Zero and Eno as well.)