- The bonus chapter, especially the beginning and cause. Apparently Alek and Deryn had been having a debate about gender differences, and Deryn suggested an arm wrestling contest where the loser would attend a party dressed as a woman. Deryn, thanks to months of serving as an airman, is rather stronger than average fifteen-year-old boys. Even ones who fence regularly.
- In Behemoth, Deryn identifies an unknown attacker in Istanbul as German by insulting him in German and listening for his retort.
- The elevator scene with Alek, Deryn and Lilit in Behemoth.
- The "smallest possible target" in the first chapter of Behemoth.
- In Goliath, Dr. Barlow's loris fishes Eddie Malone's abandoned mustache out of a teacup and puts it on. There's a picture◊.