- The first is the name "Incident Twenty", which is oddly reminiscent of one of Trevanian's novels, Incident at Twenty Miles.
- The other is the reference to "the other place", which is present (with the same phrase) in several Trevanian novels.
Do you think I am reading too much into this? Though, it's very likely that Deaver has read at least one Trevanian novel, given his importance in the genre.
Hopefully, a journalist will ask Deaver the question directly...